Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

Science fair project that examines condensation and the conditions needed in order for dew to form.

This science fair project idea investigates how magnetism can defy the force of gravity.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea explores substances that cause a bubble to last longer.

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

This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

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

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

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

In this science fair project, students create their own miniature salt flats at home.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

Examine the effect of pressure on carbonation in soda.

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.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

Cleaning can be a chore, but not with this sudsy experiment!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

This biodiversity project examines the biodiversity in your own backyard.

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.