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Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

This project examines what types of objects burn and which burn faster and cleaner.

In this activity your child will create their very own marble maze!

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

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Is it a square or a circle? See if you can trick your friends with this zany science project!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Plants and light seem to be good buddies, but how far does the friendship really go?

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.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

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

This project explores ways to prevent static electrical shocks.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

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

What is mulch? Kids will provide soil with a wet blanket of mulch and see if that helps keep drought-stricken soil damp.

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.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

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

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

This science fair project idea determines what household items are good conductors of electricity.

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

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.

Examine the effect of pressure on carbonation in soda.