In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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.

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

This science fair project idea determines the most effective method of preserving food.

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

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

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

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.

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

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

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

This project investigates the affect of storage temperature on microwave popcorn.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

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

This science fair project idea explores the different properties & interactions of sugar molecules.

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

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

This science fair project idea examines which type of insulation holds in the most heat.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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