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

Snow to Liquid Ratio

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

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

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Bubble Colors

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Rainbow in a Jar

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

Using a toy race car kids create a visual model of the Doppler Effect.

A Visual Model of the Doppler Effect

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Get Cracking

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

Growing in the Dark: Plants and Light

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Folding Paper

Can a horse lead itself to the carrot?  Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Horse Memory

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

To Leaf or Not to Leaf 

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Upside Down Plant

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Heating Sugar

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Balancing Rocks: A Wobbly Game

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Speaking Cat

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Soil Amendments and Growing Beans

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

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?

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

Food Consumption: Who Eats More?

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 science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

The Ghost in the Tube

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Meteorologist for a Day

Start your toy engines -- this is going to be a fast and friction-filled race!

Car Friction: The Science of Going Fast

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Fingerprint Analysis: A Family Case Study

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

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Rate of Evaporation

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

What is a Wedge?

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Ripening Avocados

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