Exploring the Water Cycle: Nature's Recycling System
Learning objective
Exploring the Water Cycle: Nature's Recycling System
Learning objective
Learning Objective
At the end of the lesson, you will understand the stages of the water cycle and its importance to life on Earth.
What do you already know about the water cycle?
What is the Water Cycle?
The water cycle is the continuous movement of water on, above, and below the surface of the Earth. It involves processes like evaporation, condensation, and precipitation.
Evaporation
Understanding the Process of Evaporation
Evaporation is an important process in the water cycle. Here’s what you need to know:
Definition: Evaporation is the transformation of water from a liquid state to a gaseous state.
Cause: This change is typically triggered by heat, most often from the sun.
Example: Imagine puddles disappearing after a sunny day; this is evaporation in action.
What is evaporation?
Transformation of liquid to gas
Freezing water to solid
Condensation of vapour
Solidifying water into ice
Condensation
Condensation is a key process in the water cycle where:
Water vapour in the air cools down.
This cooling causes the vapour to change back into liquid water droplets.
These droplets come together to form clouds.
Example: Think of a cold glass of water on a hot day. The water droplets that form on the outside of the glass are similar to how clouds form in the sky.
Precipitation
Precipitation happens when water in clouds falls to Earth as rain, snow, sleet, or hail.
Collection
Collection is when water gathers in bodies such as rivers, lakes, and oceans after precipitation.
The Cycle's Importance
The water cycle is crucial for maintaining life, regulating climate, and supporting ecosystems.
Review and Questions
Review the key stages: evaporation, condensation, precipitation, and collection. Are there any questions
Write down 3 things you learned in this lesson.
Write down 2 things you want to know more about.
Ask 1 question about something you haven't quite understood yet.