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

Use pepper and soap to discover some fun facts about the properties of water.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

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

Plants and light seem to be good buddies, but how far does the friendship really go?

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

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

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.

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?