Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This project investigates the affect of storage temperature on microwave popcorn.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

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.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Do different types of oil mix or stack? Find out in this science fair project idea!

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 fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.