Follow water as it changes between solid, liquid, and gas, and understand the water cycle.
Water exists as ice (solid), water (liquid), and water vapour (gas), and can change between these states with changes in temperature.
What is the process called when ice changes to water?
Melting
What is the process called when water changes to water vapour?
Evaporation
Water continuously moves between the Earth's surface and the atmosphere through evaporation, condensation, and precipitation.
What causes water from oceans and rivers to evaporate?
Heat energy from the sun
What happens when water vapour in the atmosphere cools down?
It condenses into tiny droplets, forming clouds
1. What is the process called when water freezes into ice?
2. What is the process called when water vapour turns back into liquid water?
3. What causes evaporation of water from the ocean's surface?
4. What is precipitation?
5. Why is the water cycle important for life on Earth?