WaterFilterScienceVid

What is gray water primarily used for?

• Swimming pools

• Watering lawns and flushing toilets

• Drinking and cooking

• Industrial cooling systems

Tags

NGSS.HS-LS2-7

Why is it difficult to deliver water in rural areas?

• The water sources are contaminated

• The water freezes in pipelines

• The houses are spread out, requiring long pipelines

• There is no demand for water in rural areas

Tags

NGSS.HS-ETS1-1

NGSS.HS-ETS1-3

What is the main advantage of decentralized water systems?

• They use only rainwater for supply

• They eliminate the need for water filters

• They allow each home or group of homes to manage their own water supply

• They are cheaper to build than centralized systems

What do water filters remove from water?

• Dirt, chemicals, and other contaminants

• Only bacteria

• Only dirt

• Only chemicals

How do water filters help in areas with imperfect water sources?

• They create new water sources

• They ensure water is clean and safe for use

• They store water for future use

• They reduce water usage

Tags

NGSS.HS-ESS3-4