premise: the sun is a source of solar energy called sunlight sent2: water is a kind of substance sent3: water absorbs solar energy in the water cycle sent4: evaporation means a substance changes from a liquid into a gas by increasing heat energy sent5: temperature is a measure of heat energy sent6: if a substance absorbs solar energy then that substance will increase in temperature.
hypothesis: natural selection occurs over a period of 1 to many generations which is considered a very long time to a human