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.

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

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

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.

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

This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.

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

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

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

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!

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

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

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

In this project students experiment with making music using only glasses of water.

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

Do you think heat can affect a plant's growth rate?

In this project children practice the scientific method while playing with puffy paint.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

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

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

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?

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

This science fair project idea investigates whether air has mass and weight.