Mountains and land are made of rocks and soil. Rocks and soil contain salt. Evaporation is when water goes into the air by changing to a gas. Water from the sea evaporates. Condensation is when a gas changes to a liquid.
Condensation occurs when it rains.
The earth is surrounded by a layer of air and water that we can't see. These are salt rocks. The earth contains salt. I want you to pretend that the salt rocks are our land. We are going to make it rain over our salt rocks to see what happens.