All Science Fair Projects

Over 1000 FREE Science Fair Project Ideas!

The purpose of this experiment was to determine which size of the sand particles used to make bricks would be the strongest.
Difficulty: Elementary school
It is pretty simple to make a collapsible solar box cooker from two cardboard boxes. The trick is to cut off the bottom of each box, creating two pieces...
Difficulty: Middle school
The purpose of this experiment was to determine which material used in hot air balloons is the safest and toughest.
Difficulty: High school
This cool astronomer's LED flashlight is really two flashlights in one. There are two power switches, each controlling an LED. An LED is a light emitting diode, which is an electronic device that requires very little current to run, so the batteries last a very long time. Also, LED's do not burn out.
Difficulty: High school
The purpose of this experiment was to see what materials work the best in a sandbag for preventing a flood. Fine and coarse gravel, plant soil, and mulch are not usually put in sandbags to stop floods. Most people do not have a lot of sand that they can put in sandbags. That's why I'm doing this experiment, to see if fine and coarse gravel, soil, or mulch can have the same effect as sand.
Difficulty: High school
This simple experiment shows you how to make your own anemometer for measuring wind speed.
Difficulty: Elementary school
This is an AC electric generator which is capable of lighting up a tiny incandescent light bulb. The generator is made up of a hollow-ended cardboard box with a nail through the center, many turns of copper wire wound around the box, and four larger magnets clamped around the nail. When the nail and magnets are spun fast by hand, the little light bulb lights up dimly.
Difficulty: High school
From an old radio tube, some copper wire, and other inexpensive materials — total cost: roughly $20 — you can construct an X-ray machine that will make good pictures through an inch of wood. SAFETY MEASURES THAT YOU MUST OBSERVE. Notes on Röntgen's invention. Highlights of X-ray theory.
Difficulty: High school
This experiment was conducted to ascertain the relationship between the stiffness or hardness of a tire and the speed that can be achieved by a racing car. Three types of tires of different stiffness/hardness are tested using go-kart vehicles.
Difficulty: Middle school
Using polymer sealants will help a car’s paintwork last longer by providing a protective layer over the paint, preventing damage by various contaminating substances such acid rain.
Difficulty: Middle school
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