This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Build basic projector out of ordinary materials. Create several color transparency slides, demonstrate your creation.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Science fair project that builds a magnetometer and demonstrate its uses.

This project explores whether music affects the growth and health of plants.

In this experiment, you will be making your own paper flashlight by conducting electricty with graphite.

Research currently available fuel sources, and fuel manufacturing and processing techniques. Propose an alternative fuel source.

This science fair experiment organizes made-up elements to simulate Mendeleev when he made the periodic table of elements.

This science fair project idea discovers whether plants grow best in chemical fertilizer, organic fertilizer, or with no fertilizer at all.

In science fair projects, middle school students discover why nitrogen fixing bacteria are important to plant growth.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

Test whether plants can grow without sunlight and water.

This science project examines the thermal properties of several major greenhouse gases.

In this experiment, you will find out how human error can cause faults in any science task. This includes experiments conducted by famous scientists also.

This project explores the interaction between air pressure and playing surface in determining a basketballâs bounce.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

This science project is to discover which Black Walnut tree tissue contains the most concentrated amount of Juglone, a substance that works like an herbicide.

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

This science fair project idea demonstrates that plants give off water.

Find out whether putting something on top of a plant will inhibit its growth.

Culverts transport seeds away from their original location to different places. This science project examines the effect of culverts on plant growth in streams.

This science fair project idea explores whether a plastic slinky works as well as a metal slinky when walking it down the stairs.

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.