Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Determine if each hemisphere specializes in dealing with specific functions. Include illustrations of the brain, it hemispheres.

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

This science fair project idea compares whether ionic dryers leave hair in better condition than non-ionic dryers.

Test ability to distinguish between natural and artificial aromatherapy oils. Select fragrance, natural and synthetic sample. Volunteers state preference.

Learn about the anatomy of the autonomic nervous system and its relationship to the rest of the body.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

This science project has students study the idea of human beauty.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This science fair project idea studies whether eating a hearty breakfast before and exam will get them better test scores.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Science fair project in which you will create your electricity by making a homemade battery using salt water, a nail, and a copper wire.

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

Test the effects of left and right handedness on writing speed and penmanship. Volunteers hand-copy the same paragraph of text, which samples look neater?

Determine whether butterflies like to drink sugar water, salt water, or plain water.

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

Research history of programming language. Design a new or improved programming language. Create a display that illustrates the features and improvements.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Study the effect of music on blood pressure. Compare blood pressure readings before and after the listening session. Analyze results, write a detailed report.

This science fair project idea determines whether eating before or after exercise is more beneficial to health and performance.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

In this science fair experiment about recycling, demonstrate how the wax from a candle can be reused to make another candle.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Describe the lives of commercially raised chickens. Contact local chicken farmers for information and advice. Write a detailed report about farming techniques.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.