Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Experiment with buoyancy to learn how a submarine rises and sinks in this classic science experiment.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

This science fair project idea researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

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.

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

How powerful is the reaction between baking soda and vinegar? Find out here!

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

This science fair project teaches students the differences between fruits and vegetables.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this science fair project, students create their own miniature salt flats at home.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?