3rd - 7th Grade Activities

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Will the shape of an ice cube impact how fast the ice melts?

Make these lasting felt hearts and fill them with a sweet smelling combination of rice and spices to keep the Valentine spirit alive all year long.

Use a simple toothbrush and a splatter painting technique to create this sparkling skyline work of art!

Make a beautiful nature silhouette to remember a family walk in the park or a camping trip with friends.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Craft a paper rocket in this hands-on activity inspired by the life of Mae Jemison!

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

In this activity, children will let their imagination run wild as they design and build a new planet in the solar system.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea determines what household items are good conductors of electricity.

In this challenge, students are tasked with creating a car that can be powered by a balloon!

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

This science fair project idea experiments with spinning color wheels and optical illusions.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Kids learn about potential energy, and mechanical energy, and how to make power from water with one of our favorite renewable energy projects for kids.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

Invite your child to craft dream cloud magnets to display their hopes and visions for the future!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Learn all about Misty Copeland, a famous African American ballerina with this hands-on, colorful art project!

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.