Science Project Summary:

Natural insect repellant

Featured science projectScience project video Advanced 8 < 3 days $50-$100 Readily available [+] More info
Difficulty: Advanced 8
Cost ($): 80
Time required:
1 day to prepare, 1 hour for science fair project
Availability of materials:
Easily found
Safety concerns:

Keep mosquito repellant away from children. Your will need 4 adults who are willing to expose their hands to the mosquitos.

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Abstract:
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.
Procedure 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 and .....