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Inspiring Science & Math Lessons for K-8. Try it free. K-8. Try it free. Key Stage 1 & 2. F-6. Try it free. Get instant access to hours of fun, standards-based videos, reading material, quiz games, simple DIY activities & more.

NEW! Fun Math Lessons For Grades K-8. Try it free. Grades K-8. Try it free. Key Stage 1 & 2. Grades F-6. Try it free. Get instant access to hours of fun, standards-based videos, reading material, quiz games, simple DIY activities & more.

Standards-based Science Lessons that Include: Educational Videos

Reading Material

Printable Quizzes

DIY Activities

Lesson Plans

Teacher Guides

Standards-based Math Lessons that Include: Educational Videos

Reading Material

Printable Quizzes

Practice Problems

Lesson Plans

Teacher Guides

NEW K-8 Math Lessons Now Available

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mental math within 100, categoryk2, mental math, head, brain, mind Grades K-2 Preview Only

Mental Math within 100 intro to angles, categorygrades35, angle, angles, degrees, right, acute, obtuse Grades 3-5 Preview Only

Intro to Angles intro to algebraic expressions, categorygrades68, algebraic, algebraic equation, algebraic equations, algabraic, algabraic equation, algabraic equations, expression, expressions, expresion, expresions, algebra, algabra Grades 6-8 Preview Only

Intro to Algebraic Expressions even & odd numbers, categoryk2, even, odd, evens, odds Grades K-2 Preview Only

Even & Odd Numbers powers of 10, categorygrades35, ten, 10, power, powers, multiplies, exponent, exponents, exponential Grades 3-5 Preview Only

Powers of 10 volume of cylinders, cones & spheres, categorygrades68, volume, cone, cones, sphere, spheres, cylinder, cylinders, cylander, cylanders Grades 6-8 Preview Only

Volume of Cylinders, Cones & Spheres intro to addition, categoryk2, add, addition, adding, sum, total Grades K-2 Preview Only

Intro to Addition multiplying fractions by whole numbers, categorygrades35, multiply, multiplication, multiplying, multiplied, fraction, fractions Grades 3-5 Preview Only

Multiplying Fractions by Whole Numbers multiply & divide with negative numbers, categorygrades68, negative, negative numbers, integer, integers, multiply, multiplying, multiplication, divide, division, dividing Grades 6-8 Preview Only

Multiply & Divide with Negative Numbers composing & decomposing numbers (11-19), categoryk2, compose, composing, decompose, decomposing, decomposting, put together, break apart, separate, split Grades K-2 Preview Only

Composing & Decomposing Numbers (11-19) equivalent fractions, categorygrades35, fraction, fractions, denominator, numerator, denominators, numerators, equivalent Grades 3-5 Preview Only

Equivalent Fractions money: combinations of bills & coins, categoryk2, money, coin, coins, bill, bills, dollar, dollars, penny, nickel, dime, quarter, combine, combination, pennys, pennies, nickels, dimes, quarters, cent, cents Grades K-2 Preview Only

Money: Combinations of Bills & Coins intro to multiplication, categorygrades35, multiply, multiplication, multiplying, multiplied, factor, factors, product, products Grades 3-5 Preview Only

Intro to Multiplication scientific notation, categorygrades68, scientific notation, scientific notations Grades 6-8 Preview Only

Scientific Notation partition shapes into equal shares, categoryk2, shape, shapes, split, cut, partition, partitions, partitioning, partitioned, half, halves, halfs, quarter, quarters, fourth, fourths, equal part, equal parts, third, thirds Grades K-2 Preview Only

Partition Shapes Into Equal Shares addition & subtraction within 1,000, categorygrades35, add, addition, adding, subtract, subtraction, subtracting, sum, addened, total Grades 3-5 Preview Only

Addition & Subtraction Within 1,000 probability: compound events, categorygrades68, probability, probability, event, events, compound Grades 6-8 Preview Only

Probability: Compound Events comparing 3-digit numbers, categoryk2, compare, comparing, comparison, place value, place values, 3-digit, 3 digits, three digit, three digits, greater than, less than, inequalities, inequality Grades K-2 Preview Only

Comparing 3-Digit Numbers convert units of measurement, categorygrades35, convert, conversion, unit, units, measurement, measurements, lbs, pound, pounds, oz, ounce, ounces, meter, meters, cm, centimeter, centimeters, inch, inches, feet, foot, foots, feets Grades 3-5 Preview Only

Convert Units of Measurement solve algebraic equations (1-step), categorygrades68, algebraic, algebraic equation, algebraic equations, algabraic, algabraic equation, algabraic equations, algebra, algabra Grades 6-8 Preview Only

Solve Algebraic Equations (1-Step) add & subtract within 100, categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addened, total Grades K-2 Preview Only

Add & Subtract Within 100 add & subtract fractions (unlike denominators), categorygrades35, add, addition, adding, subtract, subtraction, subtracting, fraction, fractions, common denominator, common denominators, like denominators, numerator, denominator, different denominator, different denominators, unlike denominator, unlike denominators Grades 3-5 Preview Only

Add & Subtract Fractions (Unlike Denominators) unit rates, categorygrades68, unit rate, unit rates, rates, rate Grades 6-8 Preview Only

Unit Rates intro to data: pictographs & bar graphs, categoryk2, bargraph, bargraphs, bar graph, bar graphs, picture graph, picture graphs, picto graph, picto graphs, pictograph, pictographs, pictografs, pictograf Grades K-2 Preview Only

Intro to Data: Pictographs & Bar Graphs introduction to order of operations, categorygrades35, pemdas, gems, grouping, groupings, parenthesis, parentheses, brackets, braces, order, order of operations, ordering, operations order, operations Grades 3-5 Preview Only

Introduction to Order of Operations transformations: reflections & translations, categorygrades68, transformation, reflection, translation, transformations, reflections, translations, reflect, reflecting, translate, translating Grades 6-8 Preview Only

Transformations: Reflections & Translations comparing 2-digit numbers, categoryk2, compare, comparing, comparison, place value, place values, 2-digit, 2 digits, two digit, two digits, greater than, less than, inequalities, inequality Grades K-2 Preview Only

Comparing 2-Digit Numbers lines of symmetry, categorygrades35, symetry, symmetry, line, lines, symetrical, symmetrical, mirror, miror Grades 3-5 Preview Only

Lines of Symmetry histograms & box plots, categorygrades68, histogram, histograms, box plot, box plots, histograph, histographs, whisker, whiskers, boxplot, boxplots, bucket, frequency Grades 6-8 Preview Only

Histograms & Box Plots intro to 3d shapes, categoryk2, 3d, 3 d, 3-d, shape, shapes, cube, cubes, prism, prisms, sphere, spheres, rectangular Grades K-2 Preview Only

Intro to 3D Shapes division using an area model, categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotiet, partial quotient, partial quotients, big 7, big seven, area model, box model, area, box Grades 3-5 Preview Only

Division Using an Area Model probability: single events, categorygrades68, probability, event, events, change, changes, stats, statistics, statistical, probable, chance, changes Grades 6-8 Preview Only

Probability: Single Events intro to finding area, categorygrades35, area, areas, space, 2d, 2-dimensional, 2 dimensional, square, square unit, square units Grades 3-5 Preview Only

Intro to Finding Area percent change, categorygrades68, percent, percents, ratio, ratios Grades 6-8 Preview Only

Percent Change skip counting (2s, 5s, 10s & 100s), categoryk2, skip count, skip counting, skip, count, counting, 2s, 5s, 10s, 100s Grades K-2 Preview Only

Skip Counting (2s, 5s, 10s & 100s) numbers in expanded & word form (1,000 & beyond), categorygrades35, expand, expanded form, expanded forms, word form, words, writing, write Grades 3-5 Preview Only

Numbers in Expanded & Word Form (1,000 & Beyond) comparing quantities up to 10, categoryk2, compare, comparing, comparison, greater than, less than, more than, match, matching Grades K-2 Preview Only

Comparing Quantities up to 10 intro to division, categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet Grades 3-5 Preview Only

Intro to Division integer exponents, categorygrades68, exponent, exponential, integer, integers Grades 6-8 Preview Only

Integer Exponents mean, median & mode, categorygrades68, mean, median, mode, average, distribution, graph, graphing, data, stats, staticistic, statistics Grades 6-8 Preview Only

Mean, Median & Mode intro to measurements: weight & length, categoryk2, measurement, measure, measurements, measuring, weight, weights, mass, masses, length, long, short, heavy, light Grades K-2 Preview Only

Intro to Measurements: Weight & Length rounding (nearest 10 and 100), categorygrades35, estimate, estimation, round, rounding, approximate, approximation, nearest Grades 3-5 Preview Only

Rounding (Nearest 10 and 100) square roots & cube roots, categorygrades68, square root, square roots, cube root, cube roots Grades 6-8 Preview Only

Square Roots & Cube Roots read & write numbers to 100, categoryk2, read, reading, writing, writing, draw, drawing, 100, 120 Grades K-2 Preview Only

Read & Write Numbers to 100 variation of traits, categorygrades35, traits, trait, variation, adaptation, adaptations, parent, offspring, reproduction, natural selection, heredity, hereditary, inherited Grades 3-5 Preview Only

Variation of Traits introduction to perimeter, categorygrades35, perimeter, peremeter, peremiter, perimater, length, lengths, distance, measure, measurement Grades 3-5 Preview Only

Introduction to Perimeter add & subtract with negative numbers, categorygrades68, negative, negative numbers, integer, integers, add, adding, addition, subtract, subtracting, subtraction Grades 6-8 Preview Only

Add & Subtract with Negative Numbers classify objects by attribute (color, size & shape), categoryk2, classify, clasify, classifying, classification, sort, sorting, group, grouping, attribute, attributes, atribute, atribues, shape, shapes, color, colors, size, sizes Grades K-2 Preview Only

Classify Objects by Attribute (Color, Size & Shape) add & subtract fractions (like denominators), categorygrades35, add, addition, adding, subtract, subtraction, subtracting, fraction, fractions, common denominator, common denominators, like denominators, numerator, denominator Grades 3-5 Preview Only

Add & Subtract Fractions (Like Denominators) proportional relationships, categorygrades68, proportional, relationships, proportion, relationship Grades 6-8 Preview Only

Proportional Relationships add & subtract within 20, categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addend, total Grades K-2 Preview Only

Add & Subtract Within 20 multiplication using the standard algorithm, categorygrades35, multiply, multiplication, multiplying, multiplied, factor, factors, product, products, standard algorithm, standard algorithms, standard, traditional, old-school, old school Grades 3-5 Preview Only

Multiplication Using The Standard Algorithm calculate volume (l x w x h), categorygrades35, volume, volumes, lxwlh, l x w x h, length times width Grades 3-5 Preview Only

Calculate Volume (l x w x h) use all 4 quadrants of the coordinate plane, categorygrades68, coordinate, co-ordinate, cordinate, coordinates, co-ordinates, cordinates, plane, grid, grids, planes, quadrant, quadrants Grades 6-8 Preview Only

Use All 4 Quadrants of the Coordinate Plane intro to equality (find a missing number), categoryk2, equal sign, equality, missing number, equal, unknown number, add, addition, adding, subtract, subtraction, subtracting, sum, addend, total Grades K-2 Preview Only

Intro to Equality (Find a Missing Number) scaled picture graphs & bar graphs, categorygrades35, bar graph, bar graphs, picture graph, picture graphs, picto graph, picto graphs, scaled, scaling Grades 3-5 Preview Only

Scaled Picture Graphs & Bar Graphs solve algebraic equations (2-step), categorygrades68, algebraic, algebraic equation, algebraic equations, algabraic, algabraic equation, algabraic equations, algebra, algabra Grades 6-8 Preview Only

Solve Algebraic Equations (2-Step) intro to 2d shapes, categoryk2, shape, shapes, flat, 2d, 2-d, 2 dimensional, two dimensional, 2 dimentional, two dimentional, square, squares, rectangle, rectangles, triangle, triangles, circle, circles Grades K-2 Preview Only

Intro to 2D Shapes rounding (nearest 1,000 & beyond), categorygrades35, estimate, estimation, round, rounding, approximate, approximation, nearest Grades 3-5 Preview Only

Rounding (Nearest 1,000 & Beyond) balanced & unbalanced forces, categorygrades35, force, forces, strength, direction, balanced, unbalanced, motion, hovercraft, gravity Grades 3-5 Preview Only

Balanced & Unbalanced Forces irrational numbers, categorygrades68, irrational, never ends, terminating, pi, pie Grades 6-8 Preview Only

Irrational Numbers composing & decomposing numbers (1-10), categoryk2, compose, composing, decompose, decomposing, decomposting, put together, break apart, separate, split Grades K-2 Preview Only

Composing & Decomposing Numbers (1-10) multiplying up to 4 digits (area model), categorygrades35, area model, area, box, multiply, multiplication, multiplying, multiplied, factor, factors, product, products Grades 3-5 Preview Only

Multiplying Up To 4 Digits (Area Model) percents, categorygrades68, percent, percents, ratio, ratios, 100, one hundred Grades 6-8 Preview Only

Percents intro to subtraction, categoryk2, subtract, subtraction, subtracting, take away, taking away, difference Grades K-2 Preview Only

Intro to Subtraction solve 2-step problems (all 4 operations), categorygrades35, two step, 2 step, 2-step, multi step, multistep, two part, 2 part, 2-part, two part Grades 3-5 Preview Only

Solve 2-Step Problems (All 4 Operations) solve systems of equations, categorygrades68, system of equations, systems of equations, system, systems, algebra, algabra, algabraic, algebraic Grades 6-8 Preview Only

Solve Systems of Equations strategies to add & subtract within 20 (make a 10 & doubles facts), categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addend, total, strategy, strategies, make 10, make ten, make a ten, make a 10, making 10, making a 10, making a ten Grades K-2 Preview Only

Strategies to Add & Subtract within 20 (Make a 10 & Doubles Facts) angle relationships in triangles and transversals, categorygrades68, transverse, transversal, angle, angles, degrees, angle sum, angle sums, angles sum, angles sums Grades 6-8 Preview Only

Angle Relationships in Triangles and Transversals identify & draw shapes by attributes, categoryk2, draw, dawing, attribute, attributes, atribute, atribues, shape, shapes, circle, triangle, square, hexagon, rectangle, circles, triangles, squares, hexagons, rectangles Grades K-2 Preview Only

Identify & Draw Shapes By Attributes intro to fractions using the number line, categorygrades35, number line, number lines, fraction, fractions, denominator, numerator, denominators, numerators Grades 3-5 Preview Only

Intro to Fractions Using the Number Line determine the number of solutions for linear equations, categorygrades68, linear equation, linear equations, algebra, algabra, algabraic, algebraic, determine number, determine the number, number of solutions, infinite solutions, no solution Grades 6-8 Preview Only

Determine The Number of Solutions for Linear Equations tell time (nearest minute), categorygrades35, time, minute, hour, hours, minutes, o'clock, clock, clocks Grades 3-5 Preview Only

Tell Time (Nearest Minute) graphing linear equations: slope & y-intercept (y= mx + b), categorygrades68, graph, graphing, proportional, proportion, slope, slopes, sloping, mx + b, y = mx + b, y=mx + b, y=mx+b Grades 6-8 Preview Only

Graphing Linear Equations: Slope & y-intercept (y= mx + b) write numbers up to 20, categoryk2, write, writing, draw, drawing Grades K-2 Preview Only

Write Numbers up to 20 add & subtract using the standard algorithm, categorygrades35, add, addition, adding, subtract, subtraction, subtracting, sum, addened, standard algorithm, standard algorithms, standard, traditional, old-school, old school Grades 3-5 Preview Only

Add & Subtract Using the Standard Algorithm greatest common factor & least common multiple, categorygrades68, gcf, lcm, greatest common factor, least common multiple, greatest common factors, least common multiples, greatest factor, common multiple Grades 6-8 Preview Only

Greatest Common Factor & Least Common Multiple create new shapes from existing ones, categoryk2, shape, shapes, compose, composing, create new shapes, make new shapes, new shapes, more shapes Grades K-2 Preview Only

Create New Shapes From Existing Ones intro to quadrilaterals and their attributes, categorygrades35, shape, shapes, quadrilaterals, quadrilateral, quadralaterals, quadralateral, rectangle, rectangles, square, squares, parallelogram, paralellogram, parallelograms, paralellograms, rhombus, 4 sides Grades 3-5 Preview Only

Intro to Quadrilaterals and their Attributes dividing fractions by fractions, categorygrades68, fraction, fractions, denominator, numerator, denominators, numerators, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet Grades 6-8 Preview Only

Dividing Fractions by Fractions intro to counting in groups (arrays), categoryk2, array, arrays, group, groups, grouping, count is groups, counting in groups, row, rows Grades K-2 Preview Only

Intro to Counting in Groups (Arrays) interpreting fractions as division, categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet,
fraction, fractions, denominator, numerator, denominators, numerators Grades 3-5 Preview Only

Interpreting Fractions as Division pythagorean theorem, categorygrades68, pythagorean theorem, pythagorean, theorem, therem, therum, pithagorean, triangle, traingles, a squared, a^2 Grades 6-8 Preview Only

Pythagorean Theorem tell time (nearest half hour), categoryk2, time, hour, hours, minute, minutes, clock, clocks Grades K-2 Preview Only

Tell Time (Nearest Half Hour) classify shapes in a hierarchy (quadrilaterals & triangles), categorygrades35, classify, clasify, classification, classifications, sort, organize, hierarchy, heirarchy, hiarchy, hiearchy, shape, shapes, quadrilaterals, quadrilateral, quadralaterals, quadralateral, rectangle, rectangles, square, squares, parallelogram, paralellogram, parallelograms, paralellograms, rhombus, 4 sides, triangle, triangles, polygon, polygons Grades 3-5 Preview Only

Classify Shapes in a Hierarchy (Quadrilaterals & Triangles) place value: ones & tens, categoryk2, place value, place values, tens, ones Grades K-2 Preview Only

Place Value: Ones & Tens measure mass & volume (metric system), categorygrades35, mass, volume, measure, metric, gram, grams, liter, milliliter, weight, volumetric Grades 3-5 Preview Only

Measure Mass & Volume (Metric System) add more than 2 numbers, categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addened, total, 3 numbers, three numbers, 4 numbers, four numbers Grades K-2 Preview Only

Add More Than 2 Numbers intro to ratios, categorygrades68, ratio, ratios, part of whole, part to part Grades 6-8 Preview Only

Intro to Ratios intro to data: line plots, categoryk2, line plot, line plots, line graph, line graphs, line chart, line charts, number line, number lines Grades K-2 Preview Only

Intro to Data: Line Plots water cycle (3-5 version), categorygrades35, water, vapor, gas, rain, water cycle, precipitation, snow, hail, cloud, clouds, weather, dew distillation, condensation, condense, evaporate, evaporation, cycle, hydrological, hydrologic, hydro, watercycle Grades 3-5 Preview Only

Water Cycle (3-5 Version) compare non-equivalent fractions, categorygrades35, fraction, fractions, denominator, numerator, denominators, numerators Grades 3-5 Preview Only

Compare Non-Equivalent Fractions long division (standard algorithm for division), categorygrades68, long division, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet, classic, old school, traditional, standard, algorithm Grades 6-8 Preview Only

Long Division (Standard Algorithm for Division) measure & add length (intro to the ruler), categoryk2, ruler, rulers, inch, inches, cm, centimeters, centimeter, centi meter, length, distance, lengths, distances Grades K-2 Preview Only

Measure & Add Length (Intro to the Ruler) properties of matter, categorygrades35, matter, properties, chemicals, density, chemical, conductivity, conductive, magnetism, solubility, solube, property, sulfur hexafluoride, slime, mass, volume, explosion, explosions, mater Grades 3-5 Preview Only

Properties of Matter find factor pairs within 100, categorygrades35, factor, factoring, factor pair, factor pairs Grades 3-5 Preview Only

Find Factor Pairs within 100 intro to functions, categorygrades68, function, functions, f of x, f(x) Grades 6-8 Preview Only

Intro to Functions oceans, lakes and rivers, categoryk2, ocean, oceans, water, waters, lake, lakes, river, rivers, pond, glacier, glaciers, groundwater Grades K-2 Preview Only

Oceans, Lakes and Rivers line plots with fractional measurements, categorygrades35, line plot, line plots, line graph, line graphs, line chart, line charts, number line, number lines Grades 3-5 Preview Only

Line Plots with Fractional Measurements measure elapsed time, categorygrades35, time, elapsed, elapse, stopwatch, stop watch, timer, timing, clock Grades 3-5 Preview Only

Measure Elapsed Time earth’s orbit & rotation, categorygrades35, orbit, rotation, spin, earth, earth's, earths, sky, space, shadow, shadows, constellations, cunstollation, constellation, parallax, day, night, sun, star, stars, pattern, patterns, geocentric, heliocentric, leap, zone, sundial, pendulum, planet, planets Grades 3-5 Preview Only

Earth’s Orbit & Rotation transformations: rotations & dilations, categorygrades68, transformation, rotation, dilation, transformations, rotations, dilations, rotate, dilate, transform, transforming, rotating, dilating Grades 6-8 Preview Only

Transformations: Rotations & Dilations multiplication properties (commutative, associative & distributive), categorygrades35, property, properties, comutative, comutitive, commutative, commutative, associative, asociative, distributive, distribution, distribute Grades 3-5 Preview Only

Multiplication Properties (Commutative, Associative & Distributive) fossils & extinction, categorygrades35, fossil, fossils, extinct, extinction, dinosaur, dinosaurs, tar, brea, ancient, prehistoric, cat, wolf, herbivore, carnivore, omnivore, carnivores, omnivores, herbivores, paleontologist, wolf, dig, digging, fosil, fosils Grades 3-5 Preview Only

Fossils & Extinction heating and cooling, categoryk2, heating, cooling, heat, cool, hotter, colder, temperature, degree, degrees, reversible, not reversibe, non-reversible, nonreversible, fahrenheit, celsius, melting, melt, freeze, freezing Grades K-2 Preview Only

Heating and Cooling intro to negative numbers, categorygrades68, negative, negative numbers, integer, integers, number line, number lines,comparing, comparison, inequality, inequalities, greater than, less than Grades 6-8 Preview Only

Intro to Negative Numbers multiplying fractions by fractions, categorygrades35, multiply, multiplication, multiplying, multiplied, fraction, fractions, numerator, denominator, numerators, denominators Grades 3-5 Preview Only

Multiplying Fractions by Fractions energy transfer, categorygrades35, energy, energy transfer, transfers, electric, electricity, conversion, light, sound, heat, generator, generate, generating, battery, batteries, charge, charging, motion, solar, wind, thermal, hydropower Grades 3-5 Preview Only

Energy Transfer decimals to the thousandths, categorygrades35, decimal, decimals, thousandth, thousandths, estimate, estimation, round, rounding, approximate, approximation, nearest Grades 3-5 Preview Only

Decimals to the Thousandths area & circumference of circles, categorygrades68, circle, circles, circumference, radius, diameter, diameters, pie, pi, 3,1, 3.14, 3.141, 3,1415, radius, radial, area Grades 6-8 Preview Only

Area & Circumference of Circles division using partial quotients (the big 7 model), categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotiet, partial quotient, partial quotients, big 7, big seven Grades 3-5 Preview Only

Division Using Partial Quotients (The Big 7 Model) division with unit fractions & whole numbers, categorygrades35, fraction, fractions, denominator, numerator, denominators, numerators, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet Grades 3-5 Preview Only

Division with Unit Fractions & Whole Numbers pollination and seed dispersal, categoryk2, pollen, pollens, pollin, polen, pollinator, pollinators, pollination, pollinating, pollenator, pollenators, pollenation, pollenating, seed, seeds, disperse, dispersal, dispersing, dispersor, plant, plants, bee, bugs, bug Grades K-2 Preview Only

Pollination and Seed Dispersal material properties and purposes, categoryk2, material, property, properties, purpose, purposes, color, hardness, texture, flexibility, strength, absorbency, absorbent Grades K-2 Preview Only

Material Properties and Purposes food webs, categorygrades35, food, web, chain, webs, chains, sun, decompose, decomposers, producer, producers, consumer, consumers, apex, bacteria, fungi, fungus, compost, energy, photosynthesis, foodweb, foodchain, foodwebs, foodchains Grades 3-5 Preview Only

Food Webs conservation of matter, categorygrades35, conservation, conserve, burn, reaction, reactions, chemistry, physical, matter, dry ice, vanish, disappear, dissolve, law Grades 3-5 Preview Only

Conservation of Matter animals help their babies survive, categoryk2, offspring, offsprings, baby, babies, animal, animals, skink, owl, aligator, alligator, croc, crocodile, kangaroo, pouch, survive, survival, chirp, moo, patterns in behavior, behavior, behavioral pattern, behavioral patterns Grades K-2 Preview Only

Animals Help Their Babies Survive plants need water and light, categoryk2, plant, plants, grow, growth, growth conditions Grades K-2 Preview Only

Plants Need Water And Light sunlight warms the earth, categoryk2, sunlight, sun, sunlit, sun light, warming, warm, heating, heat, shine, shade Grades K-2 Preview Only

Sunlight Warms the Earth four seasons and day length, categoryk2, season, seasons, day, day length, daylight, seasonal, fall, autumn, autum, winter, sping, spring, summer, hibernate, hibernation Grades K-2 Preview Only

Four Seasons and Day Length chemical vs. physical changes, categorygrades35, chemical change, physical change, chemical, physical, chemical reaction, reactions, chemical reactions, chemistry, states of matter, mixture, mixtures, changes, change, elephant toothpaste, elephant, toothpaste, foam, magnatism Grades 3-5 Preview Only

Chemical vs. Physical Changes bacteria & viruses, categorygrades68, bacteria, virus, viruses, covid, covid19, covid-19, microbe, microbes, microorganisms, microorganisms, micro-organisms, micro organisms, microorganism, micro-organisms, micro organism, flu, sick, infection, vaccine, vaccination, microscope Grades 6-8 Preview Only

Bacteria & Viruses patterns in the sky, categoryk2, sun, star, stars, moon, pattern, patterns, sky, rise, set, predict, prediction, predicted Grades K-2 Preview Only

Patterns in the Sky multicellular organisms, categorygrades68, cell, cells, tissue, tissues, organ, organs, body system, body systems, multicellular, multi cellular, multi-cellullar, organization, structure, muscles, muscular, nervous, sense, senses, receptor, receptors, stomach, lungs, brain, nerve, nerves, kidney, brain, intestine, intestines, stomach, digestive, digest, respiratory, renal, excretory Grades 6-8 Preview Only

Multicellular Organisms introduction to sound, categoryk2, sounds, sound, hear, hearing, ear, vibrate, vibration, speaker, tune, music Grades K-2 Preview Only

Introduction to Sound atoms & molecules, categorygrades68, atom, atoms, molecules, molecule, compound, chemical, reaction, chemical reaction, chemicals, atomic, proton, neutron, electron, protons, neutrons, electrons Grades 6-8 Preview Only

Atoms & Molecules what is engineering?, categoryk2, engineering, engineer, engineered, enginer, design, design process, inventor, invention, inventions Grades K-2 Preview Only

What is Engineering? weathering & erosion, categorygrades35, weathering, erosion, erosions, deposition, wind, ice, freeze, freezing, deposited, rock, rocks, sediment, sedimentary, sediments, glacier, grand canyon, river, mountain, landform, land form, land, land forms, soil, topsoil, change, changes Grades 3-5 Preview Only

Weathering & Erosion tectonic plates, categorygrades68, tectonics, tectonic, plates, plate, tectonic plates, earthquake, mountains, boundary, boundaries, convergent, divergent, transform, continental drift Grades 6-8 Preview Only

Tectonic Plates the five senses, categoryk2, sense, senses, see, hear, touch, taste, smell, see, eye, eyes, ear, ears, mouth, tongue, tonge, nose, noses, skin, hands, seeing, hearing, touching, tasting, tasteing, smelling, seeing Grades K-2 Preview Only

The Five Senses structure of living things, categorygrades35, structure, structures, function, functions, animal, animals, plant, plants, bone, skin, eyes, survival, endoskeleton, exoskeleton, skeleton, living, alive, life, academy, lizard, bob Grades 3-5 Preview Only

Structure of Living Things solar & lunar eclipses, categorygrades68, eclipse, eclipses, solar eclipse, lunar eclipse, blood moon Grades 6-8 Preview Only

Solar & Lunar Eclipses introduction to weather, categoryk2, weather, rain, raining, rainy, snow, snowy, snowing, storm, stormy, wind, winds, windy, sunny, sun, clouds, cloud, cloudy Grades K-2 Preview Only

Introduction to Weather chemical reactions, categorygrades68, law of conservation, chemical, chemistry, react, reaction, reactions Grades 6-8 Preview Only

Chemical Reactions simple machines, categoryk2, simple machine, simple machines, pulley, pulleys, wheel, axel, axle, lever, levers, screw, force, forces, ramp, incline plane, included plane, wedge, strength, direction, machine, machines, levers, tool, tools Grades K-2 Preview Only

Simple Machines natural selection, categorygrades68, natural selection, evolution, adapt, adapting, adaptation, darwin, finch, finches, evolve Grades 6-8 Preview Only

Natural Selection electricity & circuits, categorygrades68, electrical, electricity, electronic, electronics, circuit, circuits, closed circuit, open circuit, series, parallel, resistor, wire, capacitor, transistor, motor, led, potentiometer Grades 6-8 Preview Only

Electricity & Circuits living vs. non-living things, categoryk2, living, non-living, nonliving, not living, not-living, alive, dead, live, life, rock, nutrients, breath, breathing, reproduce, reproduction Grades K-2 Preview Only

Living vs. Non-Living Things electromagnetic spectrum, categorygrades68, electromagnetic spectrum, radio, light, visible, microwave, microwaves, micro wave, micro waves, ir, infrared, infra red, radiation, radiate, rainbow, light wave, waves, wave, uv, ultraviolet, glow, glowing, radioactive, gamma, x-ray, x-rays, x ray, x rays, xray, xrays, wavelength, wave length, amplitude, frequency, frequencies Grades 6-8 Preview Only

Electromagnetic Spectrum plant & animal cells, categorygrades68, cell, cells, nucleus, vacuole, chloroplast, cell wall, cell membrane, chlorophyll, cellular, mitochondria, golgi, golgi apparatus, lysosome, microscope Grades 6-8 Preview Only

Plant & Animal Cells inspired by nature (biomimicry), categoryk2, biomimicry, mimic, mimicry, design, invention, inspire, inspired, inspriation, inspirational, designs, solution, invention, inventions Grades K-2 Preview Only

Inspired by Nature (Biomimicry) sun and other stars, categorygrades35, sun, star, space, earth, distance, size, bright, distance, light year, planisphere, telescope, sirius, rigel, betelgeuse, telescope, telescopes Grades 3-5 Preview Only

Sun and Other Stars causes of seasons, categorygrades68, tilt, season, seasons, summer, fall, winter, spring, sunlight, sun light, 23.5, 23, orbit Grades 6-8 Preview Only

Causes of Seasons introduction to light, categoryk2, light, lights, lite, lyt, liet, transparent, translucent, opaque, dark, darkness, see, eyes, eye, illuminate, illuminated, light source, candle, laser, lightbulb, light bulb, bright Grades K-2 Preview Only

Introduction to Light brain processing of senses, categorygrades35, brain, nerves, nerve, nervous, sensory, sense, senses, receptor, signal, taste, touch, smell, see, hear, vision, touch, reaction time, engineer, engineering, engineers Grades 3-5 Preview Only

Brain Processing of Senses symbiosis (interactions between organisms), categorygrades68, symbiosis, symbiotic, competition, relations, relationships, interact, interaction, commensalism, mutualism, parasite, parasitic, parasitism, predator, prey, predation Grades 6-8 Preview Only

Symbiosis (Interactions Between Organisms) adaptations and the environment, categorygrades35, animal, animals, plants, plant, adapt, adapting, adaptation, adaptations, predator, prey, camouflage, sloth, armadillo, echidna, life, environment, environments, finch, finches, beak, beaks, beakes, adaptions Grades 3-5 Preview Only

Adaptations and the Environment electric & magnetic fields, categorygrades68, field, fields, electric, magnetic, magnet, magnets, magent, magents, electro magnet, electromagnet, electromagnets, attract, attractive, repel, repulsive Grades 6-8 Preview Only

Electric & Magnetic Fields collisions, categorygrades35, collision, collisions, energy, energy transfer, moving, motion, transfer, impact, crash, contact, rube goldberg, force Grades 3-5 Preview Only

Collisions classification of living things, categorygrades68, classify, classification, taxonomy, shared trait, shared traits, domain, kingdom, phylum, class, order, family, genus, species, scientific name, armadillo, salamander, taxonomic, hierarchy Grades 6-8 Preview Only

Classification of Living Things gravity pulls things down, categoryk2, gravity, gravitational, pull down, newton, apple Grades K-2 Preview Only

Gravity Pulls Things Down magnets & static electricity, categorygrades35, magnet, magnets, magnetism, magnetic, static electricity, static, push, pull, electromagnet, electromagnets, attract, attraction, repel, repulsion, ferro fluid, electrical, van de graff Grades 3-5 Preview Only

Magnets & Static Electricity lines, line segments, & rays, categorygrades35, line, lines, segment, segments, ray, rays, point, points Grades 3-5 Preview Only

Lines, Line Segments, & Rays understanding the basic coordinate plane, categorygrades35, coordinate, co-ordinate, cordinate, coordinates, co-ordinates, cordinates, plane, grid, grids, planes, quadrant, quadrants Grades 3-5 Preview Only

Understanding the Basic Coordinate Plane multiplication comparisons, categorygrades35, compare, comparison, comparisons, comparing, multiplication, multiplicative, multiplicitive Grades 3-5 Preview Only

Multiplication Comparisons whole number exponents, categorygrades68, exponent, exponents, gems, order of operation, order of operations, pemdas Grades 6-8 Preview Only

Whole Number Exponents scale drawings (using scale factor), categorygrades68, scaling, scale, scale drawing, scale drawings, scale factor, scale factors, scale Grades 6-8 Preview Only

Scale Drawings (Using Scale Factor) pushes and pulls, categoryk2, pushes, push, pulls, pull, force, forces, strength, direction, motion, motions, move, movement Grades K-2 Preview Only

Pushes and Pulls synthetic materials, categorygrades68, synthetic, chemical reaction, chemical, chemistry, reaction, man made, cman-made, chemical, chemistry, nylon, biodiesel, nitiniol, foam, unnatural Grades 6-8 Preview Only

Synthetic Materials introduction to traits, categoryk2, trait, traits, brother, sister, parent, offspring, offsprings, baby, babies, mom, dad, mother, father, daddy, mommy Grades K-2 Preview Only

Introduction to Traits competition in ecosystems, categorygrades68, ecosystem, ecosystems, eco system, eco system, ecology, ecological, competition, population, sustain Grades 6-8 Preview Only

Competition in Ecosystems plant growth conditions, categoryk2, plant, plants, grow, growth, soil, sand, clay, loam, soils, soil quality Grades K-2 Preview Only

Plant Growth Conditions ecosystems, categorygrades35, ecosystem, ecosystems, habitat, habitats, ecology, eco, invasive, rainforest, living, non-living, terrarium, bacteria, environment, environments, terrariums, ecosytem, ecosytems Grades 3-5 Preview Only

Ecosystems wave reflection, absorption & transmittance, categorygrades68, wave, waves, reflect, reflection, absorb, absorption, transmit, transmittance, sound, light, refract, refraction, wavelength, wave length, amplitude, frequency, frequencies Grades 6-8 Preview Only

Wave Reflection, Absorption & Transmittance patterns of motion & friction, categorygrades35, motion, moving, friction, pattern, patterns, pendulum Grades 3-5 Preview Only

Patterns of Motion & Friction comparative anatomy, categorygrades68, anatomy, anatomical, evolution, natural selection, bone, bones, embryo, embryological, arms, limbs, common ancestor, phylogeny, evolutionary phylogenetic Grades 6-8 Preview Only

Comparative Anatomy solids, liquids and gases, categoryk2, solid, solids, liquids, liquid, gases, gas, states of matter, phases, phases of matter, phase, state, matter, forms, mater Grades K-2 Preview Only

Solids, Liquids and Gases renewable vs. nonrenewable resources, categorygrades35, renew, renewable, non-renewable, nonrenewable, fossil fuel, fossil fuels, sunlight, wind, power, resources, energy, engine, coal, oil, natural gas, ethanol, algae, generator, natural resource, natural resources Grades 3-5 Preview Only

Renewable vs. Nonrenewable Resources engineering design process, categorygrades68, engineer, engineering, design, design process, engineering design process, build Grades 6-8 Preview Only

Engineering Design Process human body systems, categorygrades35, human, body, organ, organs, circulatory, circulation, digestive, digestion, respiratory, respiration, nervous, systems, system, heart, blood, lungs, nutrient, nutrients, exercise, nutrition, health, skeletal, skeleton, muscles, muscle, skeleton, skeletons Grades 3-5 Preview Only

Human Body Systems what is science? (6-8 version), categorygrades68, science, science and engineering practices, practices of science, sep, seps, ngss, next generation science, crosscutting, cross cutting, cross-cutting, dci, dcis Grades 6-8 Preview Only

What is Science? (6-8 Version) biodiversity of life on earth, categoryk2, diversity, diverse, life, animals, biodiversity, bio-diversity, habitat, habitats, lemur, scorpion, frog, skunk, backyard Grades K-2 Preview Only

Biodiversity of Life on Earth natural disasters, categorygrades35, earthquake, earth quake, earthquakes, tsunami, tsunamis, sunami, sunamis, volcano, volcanoes, volcanos, hazard, natural, disaster, disasters, magnet, crust, plates, tectonic Grades 3-5 Preview Only

Natural Disasters intro to thermal energy, categorygrades68, thermal, thermal energy, heat, phase change, phase changes, heating Grades 6-8 Preview Only

Intro to Thermal Energy extreme weather solutions, categorygrades35, weather, engineering, engineer, hurricane, hurricanes, tornado, tornados, tornadoes, lightning, thunder, roof, heat wave, solutions, pattern, patterns, disaster, storm, storms Grades 3-5 Preview Only

Extreme Weather Solutions food webs: cycling of matter & flow of energy, categorygrades68, food web, food webs, food, matter cycle, cycle matter, cycling of matter, cycling of energy, energy flow, flow of energy, flow of matter, tropic Grades 6-8 Preview Only

Food Webs: Cycling of Matter & Flow of Energy habitats, categoryk2, habitat, habitats, environment, environments, surrounding, surroundings Grades K-2 Preview Only

Habitats how do we use food, categorygrades35, energy, food, transfer, transferred, foods, hunger, photosynthesis, digestion,