Activated carbon and pesticides
Our hypothesis has been proven correct. A higher concentration of activated carbon will neutralize the pesticide malathion and flies will be able to survive, even though they are exposed to the pesticide.
Activated carbon is very useful for cleaning up pesticide spills and to mop up excess pesticides on agricultural farms. Once the pesticide has been absorbed by the activated carbon, it effectively becomes harmless.
The results of our science project experiment would perhaps be more reliable/meaningful, if we were to use a larger number of flies or a larger number of pesticide concentrations. Try repeating the experiment using different types of insects like mosquitoes or cockroaches.
Also try repeating the science experiment by comparing the effectiveness of activated carbon in neutralizing other types of pesticides.
Malathion - http://en.wikipedia.org/wiki/Malathion
Activated carbon - http://en.wikipedia.org/wiki/Activated_carbon
Using activated charcoal to inactivate agricultural chemical spills - http://www.bae.ncsu.edu/programs/extension/publicat/wqwm/ag442.html
Ensure that safety masks, goggles and gloves are worn at all times when handling the Malathion and the flies. Malathion is extremely toxic and should be handled properly, in a controlled laboratory under the supervision of your science teacher.