Water Fix!: Crash Course Kids #36.2

Which definition of solution was used in this video?

• the act or process by which a solid, liquid, or gas is dissolved in a liquid

• a liquid in which something has been dissolved

• a means of solving a problem or dealing with a difficult situation

• an answer to a mathematical equation

How did ancient Romans deal with water scarcity?

• They built long channels called aqueducts to bring clean water to where people lived

• They used desalination plants to remove salt and other impurities from saltwater

• They used a special system of filters to purify and recycle water from their sweat and urine

How do astronauts on the International Space Station deal with water scarcity?

• They built long channels called aqueducts to bring clean water to where people lived

• They used desalination plants to remove salt and other impurities from saltwater

• They used a special system of filters to purify and recycle water from their sweat and urine

How does the nation of Israel deal with water scarcity?

• They built long channels called aqueducts to bring clean water to where people lived

• They used desalination plants to remove salt and other impurities from saltwater

• They used a special system of filters to purify and recycle water from their sweat and urine

What is NOT a reason desalination, or removing salt and impurities from salt water, is still rarely used?

• The process is very expensive

• The process makes bad tasting water

• The process is energy intensive

True or false: the water in the International Space Station that has been recycled from sweat and urine is cleaner than most tap water.

• True

• False

Which strategy is California using to help combat water scarcity?

• Importing water from other areas

• Desalination

• Recycling water

• Engineering crops to use less water

• All of the above