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In this activity, your child will be challenged to make a tower using paper cups.

Design Challenge: Creating a Cup Tower

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Design Challenge: Making a Catapult

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Floating Paper Clip

In this activity your child will create their very own marble maze!

Design Challenge: Marble Labyrinths

This science fair project teaches students about wilting and browning of salad greens.

Why Do Greens Turn Brown?

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Design Challenge: Building a Bridge

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Design Challenge: Making a Boat

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

How A Kazoo Makes Sounds

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

How to Make Peanut Butter

This activity is a fun challenge for students who have just started learning to program educational robots.

Robot Around the Block

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

Cleansing Power: How Does Dishwashing Liquid Work?

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Halloween STEM Building Challenge

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Hero's Engine: Example of Newton's Third Law

Plants and light seem to be good buddies, but how far does the friendship really go?

Growing in the Dark: Plants and Light

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments!  How do you do it? It's not a secret, it's science!

Bubble Science

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The Single Fixed Pulley System

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Can You Keep a Secret?

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Soil Space: A Crowded Science

Is it a square or a circle? See if you can trick your friends with this zany science project!

Shape Words

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

What is a Wedge?

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Water Pressure at Depth

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Design Challenge: Gumdrop Towers

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Drum Size and Pitch

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Easy Rhyming Words

In this activity, your child will transform an egg into a glowing, bouncy &quot;ball&quot; that they can play with.

Design Challenge: Glowing Bouncy Egg

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

What Do Worms Eat? A Compost Project

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

What Are the Layers of the Earth?

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