Question

Place the window screen or kitchen strainer over the bucket. Pour the sand through the screen to sift it. Save the sand remaining on the screen and discard the sand in the bucket. Divide the saved sand evenly between the two plastic trays. Smooth the surface of the sand with the ruler. Measure and record the depth of the sand in each tray. Make sure each tray has an equal amount of sand. Make a medium-sized hole in the sand at one end of both trays. Do not dig all the way to the bottom of the tray. Leave some sand at the bottom of the hole. Place both trays inside the freezer. Prop up the ends with the hole about 1 inch. Pour 1/4 cup water into the hole of the first tray. Do not add any water to the second tray. Leave both trays in the freezer overnight. Add another 1/4 cup water to the first tray each day for two weeks. Do not add any water to the second tray. After two weeks, measure and record the length of the ice in the first tray. Remove both trays from the freezer and place them on a flat surface for a few hours. Allow enough time for most of the ice to melt. Observe and record what each tray looks like. Draw a picture of each tray. Measure and record sand depth at each end of both trays.

How long was the ice flow in the first tray?

a) Less than a day
b) One day
c) Two weeks
d) More than two weeks
After the ice melted, how was the sand in the first tray different from the sand in the second tray?
a) The sand in both trays remained the same.
b) The sand in the first tray was wetter.
c) The sand in the second tray was wetter.
d) The sand in both trays was frozen.
What was the sand depth in the first tray at the beginning of the experiment? What was the sand depth at the end? Answer these questions for the second tray.

Answer 1

The ice flow in the first tray was two weeks long. The sand in the first tray was wetter than the sand in the second tray after the ice melted. The specific sand depths in the trays are not provided.

Step-by-step explanation:

The ice flow in the first tray was two weeks long.

The sand in the first tray was wetter than the sand in the second tray after the ice melted.

The sand depth in the first tray at the beginning of the experiment and at the end is not provided in the given information.