A person in which country uses more water on average – US or Canada?

Grade level: 3rd – 5th grades

Skills: Bar graphs

Related environmental issues: Water

The bar graph below shows how much water is consumed per person every hour in six countries.

Screen Shot 2020-02-15 at 2.05.55 PM

  1. On average, a person in which country uses the most water among these countries?
  2. A person in how many countries uses more than 20 gallons of water every hour on average?
  3. On average, a person in which country uses the least water among these countries?
  4. A person in which county uses twice as much water as a person in Germany on average?

 

Source: statistic (2020) Annual water consumption per capita in 2017

 


Answer keys

1.US
2. Three (US, Canada, and Australia)
3.Germany
4.Japan

 

 


 

The 225 Math Quizzes That Will Make You An Environmental Expert (2019) is available from Amazon.com.  (paperback)

Screen Shot 2019-01-26 at 10.54.15 AM

 

 

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How are we protected from dangerous air pollution?

Grade level: 4th – 6th grades

Skills: Place value (whole numbers)

Related environmental issues: Air

Clean air is essential for our health.The United States has protected Americans from dangerous air pollution that cause asthma, lung diseases, and early death by enacting the law called the Clean Air Act. It is estimated that the Clean Air Act will save at least 230,000lives by 2020 in this country.

clean_air

  1. What digit is in the tens place of 230,000?
  2. What place is the 3 in 230,000?
  3. How many thousands are in this number?
  4. How many hundreds are represented by the 2?
  5. How many ones are represented by the 3?
  6. Which number represents 230,000?
a.23  x 102
b.23 x 103
c.23 x 104
d.23 x 105

 

Source: U.S. EPA, Clean Air Act Overview.

Photo: WWF

 


Answer keys

1.0
2.Ten thousands
3.230
4.2,000
5.30,000
6.c

 

 


 

The 225 Math Quizzes That Will Make You An Environmental Expert (2019) is available from Amazon.com.  (paperback)

Screen Shot 2019-01-26 at 10.54.15 AM

 

 

About this book>>>

Table of Contents >>>

Sample Quizzes >>>

Answer Key >>>