Wondering how we know that air is there? Here's a quick and easy experiment that proves that air may be thin, but it's not too wimpy to block your shot!

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

In this activity your child will create their very own marble maze!

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

In this project children practice the scientific method while playing with puffy paint.

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

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Do this activity to help your kids see how seeds contain "baby" versions of big plant stems, roots, and leaves.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

This science fair project idea investigates how color affects temperature.

Start your toy engines -- this is going to be a fast and friction-filled race!

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

Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.

Is it a square or a circle? See if you can trick your friends with this zany science project!

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

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?

This science fair project idea examines the reason boats are shaped and engineered.

In this fun project, use a memory game to test various age groups and determine whether aging directly affects short-term memory loss.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.