Water_gr. 8

​Opening Activity: Background Guessing

1. ​Change your virtual background to a place tha you want to visit in the future. You have 3 minutes to do that.

2. In the meeting chat (wait for Ms. Shanty's signal), guess the location of Ms. Shanty's background.

3. Ms. Shanty will choose at least three other students' background to guess. ​

Distribution of Water on Earth

Gr. 8_2021/2022

By Shanty Sinay

Activity 4.3 pg. 87 - 88

Study carefully Figure 4.4 , both the table and also the pie chart presented for Town A and Town B.

Then answer the ​following questions.

Some text here about the topic of discussion

Fill in the Blank

The water availability per person per year (m³) for Town A is ... while for Town B is ....

Open Ended

Write down the top three main uses of water in Town A (in order)

Open Ended

Write down the top three main uses of water in Town B (in order)

Open Ended

Compare the location and the source of water between Town A and Town B.

Open Ended

Why do people in Town A can use water more comfortably than people in Town B?

Open Ended

How does the location of Town A and Town B affect the water usage of people living in these two places?

Open Ended

OCEANS.

What are the name of 5 oceans in the world?

Open Ended

GROUNDWATER.

Where is groundwater stored? (2 locations)

Fill in the Blank

People mostly use surface fresh water (from rivers, lakes, etc.) because of its ,,, compare to the groundwater

Open Ended

ICE CAPS

What is an ice cap?

Open Ended

GLACIER

Describe glacier.

Open Ended

Where are two places which we can find ice caps and glaciers on the Earth?

Open Ended

RIVER

Define river.

Open Ended

What could be sources of river? (three sources)

Open pg. 139

​Study the map on fig. 4.30

Try to answer the questions under the title "Let's try it!"

​

Some text here about the topic of discussion

Multiple Choice

Australia does not suffer from fresh water vulnerability.

• False

• True

Multiple Choice

No fresh water figures are available for Antarctice

• False

• True

Multiple Choice

All countries south of the Equator experience water security.

• True

• False

Multiple Choice

Both North and South American continents have adequate water.

• False

• True

Multiple Choice

India has more fresh water per capita compared to China

• True

• False

Let's study pg. 140

​Northern Africa

• Northern Africa is one of the driest areas in the world

• Causes: rainfall is low and unreliable, climate change

• Implications of hotter and drier weather​: higher evaporations, less infiltration, lead to: smaller groundwater supply

​

Some text here about the topic of discussion

Poll

What are two causes of water scarcity in Northern Africa?

• human activity

• low amount of rainfall

• fewer lakes

• climate change

Open Ended

Climate change will make the weather hotter and drier. This will lead to smaller groundwater supply due to two reasons ... and ....

Let's study pg. 141

​Uzbekistan

• caused by human activities

• Aral Sea: source of water of Uzbekistan

• 1950s: diverted water from the rivers flow to Aral Sea to irrigation projects for crops (rice and cotton)

• early 1980s: water supply was completely cut off - Aral Sea shrink

• 2006: Aral Sea had dried up ​

​

Some text here about the topic of discussion

Why does water shortage occur?

Demand and Supply factors

​Demand factors - pg. 142-144

1. Population growth

2. Affluence (being able to live a comfortable life)​

Subject | Subject

Some text here about the topic of discussion

Have you divided the work?

Have you practiced?

Are you ready to answer some questions related to your Ppt? ​

​

​Presentation Prep

It is ready?

Has Ms. Shanty checked it?​

​The Ppt slides

Checking

Some text here about the topic of discussion

Presentation time

• Each group will have maximum of 3-4 minutes to present the slides.

• Ms. Shanty will ask one or two questions to each group.

  ​

• The sequence:

  Group 7 - 1 - 6 - 2 - 5 - 3 - 4​

Some text here about the topic of discussion

​Impacts of Water Shortage

• ​Read pg. 148 and 149

• Let's learn aout different impacts of water shortage from different part of the world:

  What happened? Why?

• from USA

• from Mexico

• from Myanmar

• from Ethiopia

Subject | Subject

Some text here about the topic of discussion

Multiple Choice

Why did the people in San Nicola of Mexico City wil have to experience water rationing?

• due to low temperature

• due to low rainfall

• due to unavailable tap water

• due to increasing water price

Multiple Choice

Water is extremely important in the industries since it is used to ... and ....

• to separate particles and to cool machines

• manufacture and to heat up machines

• manufacture and to cool machines

• to slow down the work of the machines and to heat up the engines

Multiple Choice

The agricultural harvest had been declined in Myanmar due to ....

• lack of available seeds

• not enough land to plant the paddy

• the increasing sea level

• delayed monsoon

Multiple Choice

Why did the Egyptian government contested the construction of the Ethiopian Grand Renaissance dam?

• It would become the largest hydropower plant in Africa

• it would lower the level of the Nile, the source of water supply in Egypt

• I would lead to floods and harvest failure in Egypt

• it would drastically lower the level of the NIle and lead to floods

Impact of Water Shortage on People

• Let's take a look at "A Journey for Water" in Ethiopia:

  PhotoEssay » A Journey For Water in Ethiopia - allAfrica.com

• ​Let's answer the following questions

Some text here about the topic of discussion

Let's Play a GAME!

• Everyone has to switch on their camera

• The goal: to guess whose song is played correctly

​Procedure:

• I have had the list of your favourite song/singer that you had submitted to me privately through chat​

• I will play 10 different song, then you have to guess who picked that song.

Some text here about the topic of discussion

IMPACTS on Water Shortage on People

Domestic Impact

• Increased difficulty in collecting water

• Water rationing​

  ​

​Economic Impact

• Reduced agricultural yields

• Increased cost of industrial production

  ​

​Political Impact

• Conflict over water supply

Some text here about the topic of discussion

Domestic Impact:

Increased ​difficulty in collecting water

• Four billion people — almost two thirds of the world’s population —  experience severe water scarcity for at least one month each year.

• Over two billion people live in countries where water supply is inadequate.

• ​Half of the world’s population could be living in areas facing water scarcity by as early as 2025.

• ​Some 700 million people could be displaced by intense water scarcity by 2030.

• By 2040, roughly 1 in 4 children worldwide will be living in areas of extremely high water stress.

Source: Water scarcity | UNICEF

Let's see the explanation on impacts of water shortage on people

​Some text here about the topic of discussion.

Study Case:

How can Singaporean avoid water shortage?​

• Go to canva.com and create a ppt slide presentation about how can Singaporean avoid water shortage (pg. 156 - 170)

• One group consist of 7 students:

  • pricing of water,

  • public education,

  • local catchment water,

  • imported water,

  • NEWater,

  • desalinated water,

  • protection of water resources

Study Case:

How can Singaporean avoid water shortage?​

​

• You have one period to finish this task

• Make sure you have good communication and divide the task fairly

• Slides must not full of words, only keywords and phrases are allowed

• The next period will be used for presentation