This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

The goal of this science fair project is to demonstrate the effects of oxidation by writing a message in invisible ink made from lemon juice.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This classic children's game demonstrates how sound travels through air vs. through a solid.

This experiment will evaluate if chewing gum affects students' test performance.

This project investigates the affect of storage temperature on microwave popcorn.

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!

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

The objective of this science fair project it to determine whether adding ethanol alcohol to gasoline slows the run time of a motor.

Wild-type and GAPDH mutant Caenorhabditis elegans were used as an example of how glucose or sugar affects the lifespan of humans.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Get this cool middle school science fair project idea on how to conduct a flame test to detect the presence of certain metals in chemical compounds.

Check out this cool science fair project idea to explore various aspects of projectile motions like mass, angle and distance.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Kids use applied math to build and test a parabolic mirror solar hot dog cooker in this cool engineering science fair project idea for middle school.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

In this design challenge, your child will create a parachute for a small toy using typical household items.