This science fair project idea determines which method of hand cleansing is the most effective.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

Has your child ever played weatherman? Try this science activity that lets kids try their hands at observing and predicting the weather.

This project explores what happens to a rubber band when it is heated and cooled.

This science fair project idea demonstrates sonar mapping of the ocean floor.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Science fair project that teaches you key definitions of molecular science, and how different isotopes of an element affect the relative atomic mass.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

The objective of this science fair project is to determine the rate at which participants can respond to different patterns.

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

This project uses toy cars to determine how friction and gravity affect cars and braking.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.

Grow borax crystals and get your child excited about Earth science with this crafty science experiment.

This science fair project idea determines an average personâs ability to use their anaerobic power system over a period of 2 weeks.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This project determines whether hands-on practice, mental practice, or no practice leads to better shooting of free-throws.

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

This science fair project idea determines what household items are good conductors of electricity.

This science fair project introduces children to static electricity and the idea that electricity is more than lights and plugs.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.