This science fair project idea determines if the temperature of rubber effects how high it bounces.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

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.

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.

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.

This science fair project idea produces varying pitches of sound.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

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

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.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Find out which kind of bubble wrap fares best when put in impact.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

This project examines whether people's taste perception is influenced by what they see.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

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

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

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

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.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

The goal of this project is to create an exciting topographical map out of dough.

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

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.