Monday, May 17, 2010

earthworms and caffeine

Friday we conducted our lab to see if caffeine plays a role in how an earthworm behaves. If you were absent use this information to complete your lab report. You are also welcome to come during lunch to conduct the activity.

Observations:
Dry petri dish ~ stayed in 1 spot, moved really slow
Water petri dish ~ tmoved around more than the dry dish, moved towards side of the dish, stuck tail end out of the water
Caffeinated solution: moved immediately when placed in solution, twisted/coiled its body

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