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Old 12-29-2005, 08:52 AM
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Exclamation Grade 8-Earth Science Project-Evaporation of water

the title is : Which affects evaporation the most... air temperature, water temperature, or wind speed?


here is what you need to know:
WHAT YOU NEED:
pan balance

sponges of different sizes

scissors

plastic sandwich bag

spotlight

hot water

cold water

electric fan

jar lid

WHAT TO DO:

1. Using the materials listed above, design an experiment to see how wind, temperature, and surface area affect the rate of evaporation. Make a prediction about the effect each factor will have on the evaporation rate.

2. Next, conduct the experiment using the materials provided to test your predictions. Record all your steps for carrying out the experiment.

NOTE: Every factor should be the same except the factor that you are testing. For example if you are testing the affect of wind on evaporation rates, the sponges should be the same size, and they should be exposed to the same temperatures. The only thing that should be different is the exposure to wind.

WHAT NOW:

Create a chart showing the results of your experiment. Make sure you include the results for all three factors (wind, temperature, and surface area).

i need this today .... and please hurry.... i beg of you!!!!!!!!!!

SOMEONE PLEASE REPLEY!!!!!!!!!!!!!!!!! IM VERY DESPERATE... I NEED HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!!!!!!!!!!!!!!!!!!1111111

Last edited by elisha11220; 12-29-2005 at 09:54 AM.. Reason: no one is replying
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