What is the Source of Energy of Water Power?
What is the source of this energy which may be used in running water wheels or turbines, whose energy in turn may be transformed into heat, light, electrical and mechanical energy? We know that falling bodies exert energy, but no more than is put into them [...]

Problem:
What percentage of an orange is water?

Research:
All living things such as humans and plants must have water to survive. Water gets recycled in a process called the water cycle. Evaporation is the change of liquid-water to water vapor. Evaporation of water occurs everyday [...]

Objective
The objective of this chemistry science fair project is to investigate several aspects of evaporative cooling.
Introduction
Evaporation is the process by which molecules in a liquid escape into the gas phase. In any liquid, such as a glass of water at room temperature, the molecules in the liquid are moving. They bump into each other as [...]