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Natural insect repellant

This science fair project was done to compare the effectiveness of using a natural versus synthetic mosquito repellant. The science project experiment involved lemon grass oil and DEET (Diethylmetatoluamide) mosquito repellent spray.

Difficulty: High school

Comparing the burning speed of scented and unscented candles

This experiment was performed to compare how quickly a scented and an unscented candle will burn. The tests were done by comparing the length that the candles will burn in 30 minutes - using unscented, rose scented and apple scented candles.

Difficulty: Middle school

Can water be split into oxygen and hydrogen?

If an electrical current is passed through water between electrodes (the positive and minus poles of a battery), the water is split into its two parts: oxygen and hydrogen. This process is called electrolysis and is used in industry in many ways, such as making metals like aluminum. If one of the electrodes is a metal, it will become covered or plated with any metal in the solution.

Difficulty: Middle school

Can lettuce seeds be used as a bioassay medium for testing toxicity?
The idea behind a reference toxicity test is that the test organism, in this case lettuce seeds, will respond in a predictable manner to varying concentrations of a particular chemical compound. At some threshold concentration, all of the test organisms will be killed (or in this case, none of the lettuce seeds will sprout). In solutions that are more dilute, some level of inhibition will occur in

Difficulty: High school

Is soil a type of electrical system?
This very interesting experiment will help you prove whether soil functions as an electrical system.

Difficulty: High school

Dry Ice Experiments
Dry ice is frozen Carbon Dioxide, or CO2, which is a gas under standard temperature and pressure conditions. The atmosphere contains about .035% of this gas. CO2 is a greenhouse gas, which means it absorbs light at infrared wavelengths. An increase in the concentration of this gas would, some scientists believe, cause an increase in the atmosphere's average temperature. The high concentration of C

Difficulty: Middle school

Do white candles burn faster than colored candles?
My topic was about burning candles. I wanted to find out what color candle would burn the fastest. My hypothesis stated that, if I burned five candles, one red, one white, one yellow, one purple, and one blue, then the white one would burn the fastest.

Difficulty: Elementary school

How to grow your own crystal garden
Crystals are not alive, but they can grow. Growing crystals requires a little time and patience. If you have both (plus a few other ingredients), you can grow your own crystal gardens.

Difficulty: Middle school

In Which Temperature Do Crystals Grow Best?
The purpose of this experiment was to determine if temperature affects the mass of crystal growth. I became interested in this idea because I have my own crystal growing kit at home, and I would like to observe which temperature they grow largest in. The information gained from this experiment could aid scientists in growing larger crystals, as well as manufacturers who are interested in growing

Difficulty: Middle school

Which brand of cooking spray works best?
wanted to find out how much food would stick to cookware using different brands of cooking spray. My hypothesis stated that name brand cooking spray would work the best, supermarket brands would be a close comparison, and that any amount of spray would work better than none at all.

Difficulty: Middle school

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Kits for your science fair projects Science fair book Science kit search tool

Science kits, science lessons, science toys, maths toys, hobby kits, science games and books - these are some of many products that can help give your kid an edge in their science fair projects, and develop a tremendous interest in the study of science. When shopping for a science kit or other supplies, make sure that you carefully review the features and quality of the products. Compare prices by going to several online stores. Read product reviews online or refer to magazines.