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.

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

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

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.

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

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.

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.

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.

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.

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

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

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.

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

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

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

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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

In this project, the affects of vitamin E are observed on a rose petal.

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

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

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