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.

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

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.

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

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

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 cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

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.

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 examines which type of insulation holds in the most heat.

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

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

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.

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

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

This science project teaches students the relationship between compost and plant growth. Students conduct an experiment with different types of compost.

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

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

Test whether plants can grow without sunlight and water.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

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

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

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

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

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.