Have you ever wondered how many numbers most people can memorize? Test your friends to find out!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science fair project idea determines the most effective method of preserving food.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!