Option 6: Use the free online versions Free but limited. If you need only the very basics of Microsoft Office, check out Microsoft OneDrive, a free service which includes access to online versions of Word, Excel, PowerPoint, and OneNote.
As air rises and cools the water in it can condense out, forming clouds. Since clouds drift over the landscape, they are one of the ways that water moves geographically around the globe in the water cycle. A common myth is that clouds form because cooler air can hold less water than warmer airâbut this is not true.
Introduce the process of condensation. If students do not know what the process of condensation is, you can tell them it is the opposite of evaporation. In evaporation, a liquid (like water) changes state to become a gas (water vapor). In condensation, a gas (like water vapor) changes state to become a liquid (water). Explain that as water molecules in the air cool and slow down, their attractions overcome their speed and they join together, forming liquid water. This is the process of condensation.