It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

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.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

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

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

This science fair project idea investigates whether plants can survive being frozen.

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.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Science fair project which teaches you about the principles of physics within a vacuum by creating a vacuum chamber.

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

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Have you ever noticed the way a dropped stone makes a fun pattern in a pond or lake? What's the science behind these splashy occurrences?

Explore if planting seeds in a certain direction will affect how fast it germinates.

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

Discover which fabrics shrink the most in the wash and why.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!