This science experiment has students test whether a snail moves faster on concrete or dirt.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

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

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

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

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.

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

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Can you fool your eyes and your brain with an optical illusion? The purpose of this science fair project is to demonstrate various kinds of optical illusions.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

This classic children's game demonstrates how sound travels through air vs. through a solid.

Test your friends to find out if you can replicate the placebo effect's incredible results.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.