This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

When you see those sunscreen "protection levels," what does that really mean? Try this experiment to find out.

Will increasing the amount of salt in water effect how slow or fast the water freezes?

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

Demonstrate how to tell the age of an egg without having to crack it open.

Discover whether a metal will expand under hot water.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Find out whether matte or shiny nail polish lasts longer.

Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

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

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.

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

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

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

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.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

In this fun activity, your child will create their very own solar oven to bake s'mores!

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.