D. Fill out the correct word to complete the concept of Water Cycle.

The driving force behind the water cycle is the energy from the 1. . The sun 2. up water on land and in the oceans, lakes, and seas. The water changes from liquid to vapor in a process called 3. . The water vapor cools and in a process called 4. , forms droplets in the atmosphere. These droplets become 5. . The droplets (or ice crystals if it’s cold enough) gather and then fall from the sky in a process called 6. . This precipitation gathers in streams and rivers and flows and becomes run off, flowing back down to the oceans, seas, and lakes.