The standard deviation is determined by first calculating the mean, then taking the difference of each control result from the mean, squaring that difference, dividing by n-1, then taking the square root.
The higher the heat level is th â¦ e faster the liquids evaporate. But if you leave something outside like syrup for sometime, it will take much more longer to evaporate since syrup has a substance so much thicker than water.
Objectives. 1  Explain that evaporation is the process of a liquid changing into a gas. Liquid water evaporates to become a gas called water vapor. 2  Understand that the sun's heat helps water evaporate and return to the atmosphere. There, it turns from water vapor back into liquid water and forms a cloud.