Today in science, we did an experiment to see which is denser - warm air masses or cold air masses. The answer was that cold air masses are denser than warm air masses. Warm air masses go on top of cold air masses. Cold air masses go on the bottom. Warm air masses rise and cold air masses drop in to take their place. We showed this by using vegetable oil with red food coloring (to imitate a warm air mass) and cold water with blue food coloring (to imitate a cold air mass). It was fun to test which is denser.
by Clayton and Aynsley
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