4th - 6th Grade Activities

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

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

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.

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.

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.

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.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

In this fun experiment, we'll find out how color affects heat absorption!

Competitors go head-to-head only this time it's a race to figure out the lowest common multiple of two numbers; an important step to working with fractions!

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Create your own version of an Aboriginal Australian dot painting in this fun activity!

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!