Human Impact of the Environment 8th grade

Oliver, Scarlett, and David are discussing ways to conserve water at home. They suggest several strategies. Can you identify which one would be a practical approach?

• David suggests collecting rainwater for watering plants.

• Scarlett believes people should leave the tap running while brushing their teeth.

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NGSS.MS-ETS1-3

NGSS.MS-LS2-5

Lucy, Ethan, and Olivia are part of a project to promote sustainable living in their community. They want to encourage everyone in their neighborhood to conserve electricity. What advice should they give to their neighbors to achieve this goal?

• Use electricity only during peak hours.

• Turn off lights and appliances when not in use.

4- The students at Green Valley School are planning to make their school more sustainable. Which of these strategies would help in reducing the school's water consumption?

• Switch off lights in classrooms when not in use.

• Implement rainwater harvesting systems.

During a discussion on global population growth, Aiden, Rohan, and Charlotte were analyzing a chart. Aiden asked, 'If we compare the rate of population growth from 1700 to 1800 with the rate from 2000 to 2010, how would they compare?'

• A) The rate was faster in 1700-1800

• B) The rate was faster in 2000-2010

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NGSS.MS-ESS3-4

Oliver, Mia, and Noah are playing a game of 'Survival of the Fittest'! They are analyzing graphs that depict the human population size in relation to food production per acre in three different imaginary countries over the same time period. They are trying to determine which country was able to sustain the longest without the need for food imports. Can you assist them in figuring it out?

• Country X

• Country Y

• Country Z

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NGSS.MS-ESS3-4

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NGSS.MS-LS2-4

Hey guys, I'm having a bit of trouble with this concept. Can you explain what 'sustainable consumption' means? Is it:

• the process of depleting natural resources at a faster rate than they can be replenished

• the use of goods and services that respond to basic needs and bring a better quality of life, while minimizing the use of natural resources, toxic materials and emissions of waste and pollutants over the life cycle, so as not to jeopardize the needs of future generations

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NGSS.MS-ESS3-4

Hey Harper, Anika, and Sophia, can you guess which statement is true about the water cycle on Earth?

• Could it be that the water cycle is a continuous process where water evaporates, condenses and precipitates in a cycle?

• Or maybe the water cycle is a process where water is constantly being created and destroyed?

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NGSS.MS-ESS2-4

Hey Arjun, Noah and Liam, can you guys tell me another major disadvantage of hydroelectric dams?

• Do they cause a significant increase in water pollution?

• Do they contribute to the displacement of local communities?

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NGSS.MS-ESS3-4

NGSS.MS-LS2-4

10- Consider a conversation between Sarah, Liam, and Noah. They are arguing about the primary source of the rise in atmospheric carbon dioxide levels. What do you think was their consensus?

• erosion of mountains

• combustion of fossil fuels

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Hey Harper, Ethan and Hannah, can you guess how the human population growth rate has changed over time?

• Has the human population growth rate always been constant?

• Did the human population growth rate start to increase only after the year 2000?

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NGSS.MS-ESS3-4