Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Help your kindergarten scientist explore an important part of earth science: how soil retains water.

Does your child know that salt water conducts electricity? This simple experiment will show how salt water acts as a conductor to electrical currents.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?

Tap into your child's imagination while creating magic water bottles by filling a bottle with objects that they can search for and locate.

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

Help your preschooler understand that the surrounding world is made up of a varied combination of land, air and water with this simple activity.

Boiling water in a paper cup is possible because of convection and the thermal properties of water and paper. Learn how with this fun science fair project idea.

Learn with makes water molecules work with this fun and easy science activity!

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

This science fair project idea explores how water and ice can change the form of rocks.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

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

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Test whether plants can grow without sunlight and water.

This science fair project examines whether ocean water can be made safe to drink.

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

Have your child kick off their summer vacation by making a miniature water slide!

Find out which type of sponge holds the most water.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

Being sick stinks! Help make being achy a little easier by helping your child craft a comforting hot water bottle doll out of fabric, googly eyes, and ribbon.

Dive into U.S. colonial history by making a simple bottle gourd water cooler, crafted by colonists of Roanoke Island in the 16th century.

Discover whether a metal will expand under hot water.

This science fair project idea studies the acidity of rain water and whether the acidity is the same on all rainy days or does it fluctuate.