Unit 6 Pre-Assessment (Part 1)

A community is deciding if it should build wind turbines to meet its need for electricity. What are advantages of wind turbines? Select TWO correct answers.

Level 2

• Wind turbines are effective in any location.

• Wind turbines produce electricity without polluting the air or water.

• Wind turbines use a cost-free source of energy.

• Wind turbines are effective in any type of weather.

• Wind turbines never break down or need to be repaired.

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Which statement below best describes the main advantage of using fossil fuels for energy?

Level 2

• Fossil fuels can be raised on farms and ranches.

• Fossil fuels are renewable resources that are easy to obtain.

• Fossil fuels are energy-rich and convenient to use.

• Fossil fuels release little to no pollution.

What is a disadvantage of using a nonrenewable resource, such as oil energy?

Level 2

• The resource is inconvenient to use.

• The resource is more expensive than a renewable resource.

• The resource cannot be easily replaced after it is used up.

• The resource exists only as a solid, not a liquid or gas.

What is a disadvantage of building dams on rivers to generate electricity?

Level 2

• The rushing water of rivers is a nonrenewable resource.

• The dam can create more water in the area.

• The electric dam can damage the river environment and ecosystems.

• The electric generators never need to be replaced.

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Below is a photo of a cod. Animals are identified as a renewable resource. Why might we not be able to use some animals in the future?

Level 2

• The animals will be classified as nonrenewable.

• Animals will be replaced by another resource.

• Animals will learn to hide.

• The animal population may decrease over time or become extinct.

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Conservation helps protect our energy resources. What is one way electricity is NOT conserved?

Level 3

• Buy products that use less electricity to run.

• Turn off lights in a room when no one is using them.

• Use renewable energy, such as solar energy, to run household appliances.

• Ride bicycles instead of driving cars.

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Which statement best describes the role of critical energy resources in people’s lives?

Level 3

• Energy resources are not important because only a few people use them.

• Energy resources are important only in rural areas because other resources are used elsewhere.

• Energy resources are important only to people who drive automobiles or trucks.

• Energy resources are important for people everywhere.

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A family is contributing paper to a recycling program. How does recycling paper impact the environment?

Level 3

• Recycling paper saves space in landfills.

• Recycling allows paper to be burned as a fuel.

• Recycling helps produce an improved, long-lasting type of paper.

• Recycling allows paper to replace plastic.

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The city of Arlington has a rule that trees cannot be cut down if the trunk is over 30 inches around. If the tree is cut down, then either a fine must be paid or plant the same number of trees that add up to the circumference of the old tree. Explain what conservation is AND why it is important to replant trees after we cut them.

Level 3

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How do wind turbines generate electricity?

Level 2

• By using the wind to turn the blades of the turbine, which then spins a generator to produce electricity.

• By using water to power the turbine

• By using solar panels to capture sunlight

• By burning fossil fuels to create energy

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