Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

Construct and experiment with a periscope using reflected light rays to gather an image.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

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

Check out this cool science fair project idea to explore the risk of mechanical deterioration of artifacts placed in a storage box due to mold outbreaks.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

This project explores ways to prevent static electrical shocks.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

Demonstrate how static electricity can cause an object to move. It also examines just how an object affected by static electricity will move.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

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?

Plants and light seem to be good buddies, but how far does the friendship really go?

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

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

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.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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

What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.