This science project teaches students to classify different shapes of leaves.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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.

This science fair project idea explores whether mint, known for its âcooling sensationâ really does lower temperatures.

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

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

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

How do organic materials become soil? This science experiment measures what materials biodegrade.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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 recreates the movement of planetary bodies in order to learn why they sometimes appear to move backwards.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Here's a pressed leaf card project that puts science and writing together for your second grader.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

This science fair project idea explores whether talking to a plant will help it grow.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!