Properties Of Water: The desalination process

Properties Of Water: The desalination process

Assessment

Interactive Video

Biology

1st - 6th Grade

Hard

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The video discusses the global issue of water scarcity, highlighting efforts by organizations like UNICEF and WaterAid to provide clean water. It explains desalination, particularly reverse osmosis, as a method to remove salt from water. The potential of graphene in improving desalination efficiency is explored, with its unique properties allowing for effective water purification. The importance of freshwater for economic development and the challenges posed by population growth and climate change are emphasized.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organizations are mentioned as working to provide clean water in Asia and Africa?

UNICEF and WaterAid

Red Cross and WHO

Greenpeace and WWF

Doctors Without Borders and Oxfam

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of desalination?

To increase water temperature

To remove salt from water

To add minerals to water

To purify air

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the method called that uses a semi-permeable membrane to desalinate water?

Distillation

Filtration

Reverse Osmosis

Evaporation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What unique property of graphene makes it useful in desalination?

It is hydrophilic

It is radioactive

It is hydrophobic

It is magnetic

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the structure of graphene oxide laminates compared to?

Quartz

Diamond

Nacre, mother of pearl

Granite