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This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

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.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

Examine whether males or females are more likely to have a higher center of gravity.

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

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

Science fair project that determines how UV radiation emitted by the sun varies depending on the time of day, using a handheld UV detector

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Learn how to relight a candle by lighting the vaporized wax in the smoke, and test how various kind of wax and candle brands relight differently.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

This science fair project researches the most effective method to cut an onion and stay tear-free.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This science fair project ideaexplores whether cooking food destroys potential vitamin levels.

Learn whether dark green and leafy veggies tend to have a higher Vitamin C content than lighter green varieties.

Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

What is a compound microscope? Kids find out by making one of their own in this cool science fair project.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project idea addresses tempo, and whether faster or slower music works better as a study aid.

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

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.