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.

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

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

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

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Discover whether cold or hot water from the faucet will boil faster on the stove.

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

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

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

This science fair project idea explores whether talking to a plant will help it grow.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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

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

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.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.