Unit 7 Lesson 1 How Do People Use Resources? Copyright © Houghton Mifflin Harcourt Publishing Company

Unit 7 Lesson 1 How Do People Use Resources?

Copyright © Houghton Mifflin Harcourt Publishing Company


Natural Resources



Natural Resources



Natural Resources


• A natural resource is anything useful or necessary for living beings that occurs naturally on Earth.

• Water, wind, sunshine, soil, and coal are natural resources.


Natural Resources


• Scientists classify resources into two groups: renewable and nonrenewable resources.

• Renewable resources are resources that nature can replace when they are used.


Natural Resources


• Nonrenewable resources are resources that nature cannot replace after they are used up, and so they may completely disappear.

• Minerals, soil, and fossil fuels are nonrenewable resources.

• A fossil fuel, such as coal, natural gas, or oil, is an energy source formed deep inside Earth from the remains of organisms that lived long ago.

• Fossil fuels are used to power cars and trucks and they are also used to generate electricity.

Active reading : Q no. 2



Brain Check: Q no. 2





Natural Resources

Resources on the Move• Most natural resources travel long

distances between the places where they occur and the places where they are needed.

• For example, the United States uses more oil than it produces, so it must import oil.

• An import is something brought into a country to be sold or traded.

• An export is something sent out of a country to be sold or traded.

• Tanker ships and pipelines move oil to places where it is needed.



Do the math: Q 3 Active reading



Using Resources at Home


• People do not use most natural resources in their original form.

• Every product used is made from one or more natural resources. For example, paper comes from trees and plastic can be made from oil.











What’s That Smell?


• The use of natural resources can cause pollution, or the contamination of air, water, or soil by materials that are harmful to living things.

• Air, water, and soil are some of the most important natural resources.

• Most air pollution comes from fossil fuels burned in cars, trucks, factories, and energy stations. Air pollution can be unhealthy to people, plants, and animals.




• Smog, trash, and dirty water are examples of how using natural resources can harm the environment.

• Smoke from resources burned by factories can cause air pollution.




• Water pollution can be caused by trash, eroded soil, or chemicals getting into rivers, lakes, or groundwater.

• Water pollution harms organisms, including people, that need water to live.




• Soil can become polluted from chemicals leaking from storage sites or runoff from roads, making soil unusable for growing crops.


Exit slip:










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Unit 7 Lesson 1 How Do People Use Resources? Copyright © Houghton Mifflin Harcourt Publishing Company