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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

This science fair project determines the quality of a given product.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This science fair project idea discovers the principle of conservation of mass.

This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.

Science fair project that examines the biodiversity of ant populations in various locations.

Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.

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.

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

This science fair idea examines hydrogel superabsorbent polymer crystals. They can absorb 500 times their weight in water. Can they absorb other liquids too?

Test your friends to find out if you can replicate the placebo effect's incredible results.