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Topics > Chemistry > Miscellaneous

	Project title	Natural insect repellant
	Difficulty Level	High school
	Project page	Click here to view this science project
Description
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.
Instructions preview
1. For this science fair project, the independent variable is the type of mosquito repellant used – lemon grass oil or a DEET-based mosquito repellant. The dependent variable is the number of mosquitoes that come to rest on the participant’s hand. This is determined by observing and counting the mosquitoes on the participant’s hand. The constants (control variables) are the number of mosquitoes in the aquarium tank and the size of the aquarium tank. 2. Forty mosquitoes are caught or bred from a mosquito egg raft for this science fair project. The mosquitoes are then released into the aquarium .....

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