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	Project title	Tick-tock, Biological clocks!
	Difficulty Level	Middle school
	Project page	Click here to view this science project
Description
This science fair project was conducted to find out how the biological clocks of singles and couples adjust to changes in the environment. The science experiment involved shifting daylight hours for single hamsters and paired hamsters.
Instructions preview
1. For this science fair project, the independent variable is whether the hamsters were examined alone, or in pairs, in the cage. The dependent variable is the average amount of time the hamsters spent on the exercise wheels. This is determined by observation and recording the timing using the stopwatch. The constants (control variables) are the shift in the daylight hours, the number of hamsters used and number of daylight hours. 2. The cages are labeled P1, P2, S1 and S2. One hamster is placed in each of the cages labeled P1 and P2. Two pairs of hamsters are .....

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