water on Earth part 2

Tuesday, April 16, 2024

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A brief about the lesson

Always stay positive

The water Cycle

In this lesson, we will explore how the transfer of thermal energy drives processes
of the water cycle including evaporation, condensation, and crystallization.

The fall of dropping water wears

away the stone.

Objectives of the Lesson:

Book Pages

The water Cycle

➢

Explain how water disappears and then

reappears on Earth.

Extra

worksheet

When water vapor rises in the atmosphere the temperature drops.

Water vapor loses thermal energy and turn into liquid drops.

This process is called Condensation.

When the temperature is very cold, water vapor can lose too much
thermal energy. This process is called crystallization.

When small particles are surrounded by thousands of other

droplets or ice crystals, they block and reflect light. This makes

them visible as clouds or fog.

Summary

Evaporation when

water gains thermal

energy and turns

into water vapor.

Condensation

when water

vapor loses

thermal energy

and turns into

drops of water.

How was the lesson today?

Tomorrow’s Assignment

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Objectives of the Lesson:

Book Pages

The Water Cycle

➢

Explain what happens to the water after it

condenses in the atmosphere.

Extra

worksheet

Evaporation

Water will gain
thermal energy
and turn into
water vapor.

Condensation

Condensation

Water will lose
thermal energy
and turn into
liquid water.

When drops of water become

heavy in the atmosphere, they

start falling back again to the

ground as rain This process is

called precipitation.

Precipitation

It is moisture that falls from the cloud to

Earth’s surface.

Where do all

precipitation fall?

75% of rain falls in the ocean

Some of the precipitation falls in the

rivers, lakes and streams, which will join

together and flow back into the ocean.

Gravity acts on precipitation causing

water on and below Earth’s surface to

continuously flow downhill toward the

ocean.

What is a reservoir?

A reservoir is a storage area.

What is a reservoir?

A reservoir is a storage
area.

Oceans, lakes, glaciers,
and ice caps and
groundwater are all
reservoirs.

Some of the water seeps underground. This water is called Groundwater.

Underground the water is stored in aquifers.

What is an aquifer?

An area of rocks that holds a significant amount of water.