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.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

This science fair project investigates why the number of visible stars changes from place to place.

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

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

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

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

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

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

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Believe it or not, the common spud has enough electrochemical energy to power a small digital clock.

In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

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

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

This science fair project idea examines the distance a person travels on an average day and to relate that to an understanding of the size of the Earth.

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

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

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

This science fair project idea determines the probability of a coin landing heads or tails.