This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

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

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

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

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

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.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Take a dive into the candy jar with this yummy science experiment.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

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

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

How well can people recall what they have observed. Test your knowledge in this fun experiment.