In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

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

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

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

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

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.

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

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

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

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

Word color association is just a fancy way to talk about the way we connect colors with words.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.

Here's a science activity to help your child investigate how seeds are designed to travel.