MethodsBISC12labreport

MethodsBISC12labreport - when the water reaches 30 degrees...

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Methods: 1. Obtain materials: 5 thermometers, 3 hot plates, a bucket of ice, 5 250 ml beakers, 5 test tubes with 5 Daphnia in each, 5 timers, 2 beaker tongs, 5 test tube clamps, deionized water, and a test tube rack. 2. Fill a beaker with 250 ml of deionized water at 20 degrees Celsius. This is about room temperature but if water is not already this temperature, take appropriate steps (heat or cool it) in order for it to reach this temperature. 3. Place a beaker of 250 ml of deionized water on a hot plate at 60 degrees Celsius with a thermometer inside. 4. Watch the temperature of the water in that beaker (using the thermometer) and take it off the hot plate when it reaches 40 degrees C. 5. Repeat steps 3 and 4 with another 250 ml beaker but take beaker off hot plate
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Unformatted text preview: when the water reaches 30 degrees C. 6. Fill 2 other 250 ml beakers with deionized water and place them on an ample amount of ice. 7. Put a thermometer in each beaker. 8. Take one beaker off ice when it is 10 degrees C. 9. Take the other beaker off the ice when it is 0 degrees C. 10. Place all beakers on tables with thermometers inside. 11. Get the 5 test tubes containing Daphnia and place them in each of the 5 beakers with thermometers inside. 12. Have all lab members take note of the behavior of the Daphnia under each of the 5 different temperature environments. 13. Collect data for 10-15 minutes then clean up station....
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This document was uploaded on 10/27/2011 for the course BIO 10002 at GWU.

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