This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

How powerful is the reaction between baking soda and vinegar? Find out here!

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Show your middle schooler how a quick whirl of spinach in the blender will reveal the cobwebby "stuff"--or DNA--of life!

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

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

Science fair project that determines how we can change potential energy into kinetic energy.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

Can playing video games trigger an adrenaline rush even though there's no real danger? In this cool experiment you'll learn all about how fight-or-flight works!

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

In this experiment we use Scotch Guard to make sand that resists water.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Here's a simple craft activity that can help your youngster better visualize the life cycle of a frog as a circle.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Challenge your young dinosaur lover to examine dinosaur footprints and then create their own dinosaur fossil in this hands-on activity.

Learn the chemistry and physics of the brain, how our nervous system work. Demonstrate that the brain is an electrical and chemical machine.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Find out if most people can distinguish the difference between tones on different instruments.

Discover how and which salt melts ice the quickest.

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Study structure of the lens found in the human eye and determine whether it is concave or convex. Prepare a ray diagram, formulate hypothesis.

Check out this mind-blowing experiment in which a hard-boiled egg will fit through an impossibly small opening with the help of only a few matches!

Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

This fun middle school science fair project idea explores the process of respiration and determines whether boys and girls have the same lung capacity.

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.