The Water Cycle: a Drop of Water

The video explores the journey of a single drop of water, which could be thousands of years old, tracing its path from ancient seas to glaciers and clouds. It introduces the water cycle, a continuous process involving the movement of water from liquid sources to the air and back to Earth. The video highlights three key processes: evaporation, condensation, and precipitation, explaining how they contribute to the transformation of water from one form to another.

What are some possible forms a single drop of water might have taken over thousands of years?

• A component of a rock

• A molecule in a plant

• A part of an ancient sea

• A drop in a modern river

What is the water cycle?

• A process of water purification

• The continuous movement of water from liquid sources to the air and back to Earth

• A method of water storage

• A way to measure water quality

Which of the following is NOT a part of the water cycle?

• Evaporation

• Condensation

• Precipitation

• Filtration

What process involves water changing from a liquid to a gas?

• Condensation

• Sublimation

• Evaporation

• Precipitation

Which process in the water cycle involves water vapor cooling and changing back into liquid droplets?

• Infiltration

• Condensation

• Evaporation

• Precipitation