Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

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

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project idea compares biodiversity between drops of water.

This science fair project idea explores the different properties & interactions of sugar molecules.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

This science fair project idea determines which method of hand cleansing is the most effective.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

In this experiment you will replicate the mummification process by making a hot dog mummy.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

In this project students experiment with making music using only glasses of water.

Making your own glass cleaner is easy, effective and inexpensive!

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Discover whether cold or hot water from the faucet will boil faster on the stove.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

Discover how and which salt melts ice the quickest.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

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

Examine the effect of pressure on carbonation in soda.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Help your kindergarten science maven explore the water cycle without getting everything wet.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

An home science experiment for older students that teaches about the science behind heat.

This science fair project idea examines which type of insulation holds in the most heat.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.