Water Filtration and Safety Concepts

The video tutorial covers unit 2.4 on filtering, focusing on practical work, safety, and the science of filters. It includes activities on water filtration, particularly in Ethiopia, and discusses waste water filtration. Instructions for building and improving a layered filter are provided, along with an overview of water filtration in the UAE. The importance of water filtration for health and global water issues are highlighted. The video concludes with research tasks and home water practices.

What is the primary purpose of using diagrams and tables in scientific observations?

• To confuse the reader

• To avoid writing long paragraphs

• To record and analyze results effectively

• To make the observations look colorful

Which of the following can be used both as a verb and a noun in the context of filtering?

• Funnel

• Filter

• Diagram

• Layer

What is the role of filter paper in the filtration process?

• To increase the volume of the liquid

• To dissolve the solids

• To separate insoluble solids from liquids

• To add color to the mixture

In the practical activity, which material is suggested to be placed at the bottom of the filter to prevent sand or gravel from falling through?

• Metal mesh

• Stones

• Cotton wool or fabric

• Plastic

Why is it important not to drink the water filtered in the practical activity?

• It might still contain germs

• It is too hot

• It tastes bad

• It is too cold

What is one of the main benefits of water filtration mentioned in the lesson?

• It makes water taste sweet

• It removes impurities and retains essential minerals

• It increases the water's temperature

• It changes the color of the water

Which organization is responsible for managing wastewater in Abu Dhabi?

• Abu Dhabi Health Department

• Abu Dhabi Environmental Agency

• Abu Dhabi Sewerage Services Company

• Abu Dhabi Water Authority

What is the significance of World Water Day?

• To promote bottled water brands

• To raise awareness about the importance of fresh water

• To encourage people to drink more water

• To celebrate the invention of water filters

Which country is highlighted in the lesson as facing significant water scarcity issues?

• India

• Brazil

• Ethiopia

• Australia

What is a suggested method to ensure drinking water is safe at home?

• Shaking the water

• Freezing the water

• Boiling the water

• Adding sugar