Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

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

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

In this project, you will observe and record changes in sunspots over two weeks.

This experiment evaluates whether motivational music can improve athletic performance.

This science fair project idea explores how length affects the weight a bridge can hold.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

In this experiment you will evaluate whether praise improves athletic performance.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

Experiment with magnetism in this 8th grade science activity in which your child will create a working compass using a steel needle, magnet, and jar.

This basketball project explores the best way to make the perfect shot every time.

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

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

Did you know that August is American Artist Month? Your child can explore the art of photography by using a digital camera to capture the landscape around her.

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

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

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