The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

In this activity, your child will be challenged to make a tower using paper cups.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea demonstrates that plants give off water.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

In this science fair project, students use the streak test to tell minerals apart from each other.

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

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Science fair project which measures whether tsunamis are more destructive when they are caused by an earthquake or by a meteor.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Check out this cool science fair project idea to explore which other common animals besides scorpions glow under a UV Black light.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.