This experiment challenges students to forecast the weather based on the surrounding areas' weather.

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.

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

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

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

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

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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

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!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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.

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science fair project idea determines if the color of light affects the growth of plants.

Test whether plants can grow without sunlight and water.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

This science fair project idea investigates whether plants can survive being frozen.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

How do organic materials become soil? This science experiment measures what materials biodegrade.

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!