Later on we found some water drops who had been explorers, and they told us all about their adventurers. They've been to water wells. sewers, and they've even been on surface water from lakes and oceans several times!
The ocean is a large body of water in the ground. Evaporation is when water heats up and becomes lighter as it goes back up in the sky or turns into water vapor.
surface water storm lake Surface water is the water on top of all the other water. A storm is when water falls from the sky. A lake is a small body of water.