Evaporation

In: Science

Submitted By candyface24
Words 690
Pages 3
I first went out and bought my materials - light bulbs, four rubber light sockets, nine ounce plastic cups, four 15" by 15" by 15" cardboard boxes, duct tape, and a disposable camera.
I then put the boxes together.
I measured to the center of the top of the box and placed a dot there.
I then poked the light socket through at the dot, making sure that the prong was exactly two and one-half inches above the box.
I taped the light to the box in that spot.
I then measured to the center of the bottom of the box and placed a dot there.
I placed a plastic cup directly on top of the dot making sure that the center of the cup was directly on top of the dot.
I then taped the glass down to make sure it wouldn't move.
I placed a twenty-five watt bulb in the socket and labeled the box.
I put the other three boxes together in the same way. Making sure that the socket was at the same height and place and the same for the cup. Except for the fact that each box had a different bulb and a different label.
I filled each glass with eight ounces of water making sure each was the exact same measurement.
I kept the light on for thirty hours.
I then poured the water back into each measuring cup and recorded the number of ounces that remained.
I repeated this experiment four more times in the same exact manner.
I recorded all my results.
Observations & Data

This photo shows how the boxes looked in the beginning:

This photo shows how the boxes looked after the thirty hours passed:

This photo shows the control box with water:

There are a few possible errors in my science fair project. The lights could have been at a slightly different angle. This could have effected the amount of heat on a glass of water compared to another. Another possible error is that when pouring the water back into the measuring cup, a little water could have been left over. Even though…...

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