In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.

In this project, waves of vibrations are experimented with using water in glasses.

This project compares the strength of one, two, and three-ply toilet paper.

Have your child build a model of a coral polyp, one of the tiny animals that composes a coral reef.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.

You don't need to wait for rain to see a rainbow. Make one yourself, and teach your child about light and weather in the process.

Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!

Find out whether a longer airplane will fly farther or a wider paper airplane.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Let your fabulous crafter use their favorite flowers, fruits and herbs to whip up a delicious perfume that they can proudly present to a friend or a loved one.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Your child grows a green thumb and flowers with this seed planting activity that also celebrates the 100th day of school!

Your child helps the environment while saving your family money in this fun and rewarding "Gas Guzzlers" competition.

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

Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.