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

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Test whether plants can grow without sunlight and water.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

This science fair project will help students learn about non-vascular plants, such as mosses.

This science fair project idea explores how length affects the weight a bridge can hold.

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Use pepper and soap to discover some fun facts about the properties of water.

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

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project idea investigates which objects float and sink in honey, water, and oil.

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

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

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

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Create your own cloud with an activity that will explain how important concepts such as evaporation, condensation, and precipitation work.