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.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.

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

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

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.

This activity works well with a group or just with a parent and child, and it can make a great party game since it's both fun and inexpensive.

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.