In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

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

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

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

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

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

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

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.

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 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.

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.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

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

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

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

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

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

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

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

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

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

Test whether plants can grow without sunlight and water.

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

Find out whether putting something on top of a plant will inhibit its growth.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

This science fair project idea is develops new or improved paper making techniques and encourages recycling.

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

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!