Renewable Resources-Indians: Levings

What is a renewable energy source?

• an energy source that pollutes the environment
• an energy source that can be used over and over

What is a benefit of renewable energy sources?

• They are widely available.
• They are depleted quickly.

What is a renewable energy source?

• gas
• solar

Which device produces mechanical energy?

• windmill
• wind turbine

How did people use wind energy long ago?

• to generate electricity
• to run mills and pumps

What is a drawback to wind energy?

• Wind turbines create light pollution.
• Many wild animals are killed each year.

Tags

NGSS.MS-LS2-4

How do dams produce electricity?

• They convert water to electricity.
• Falling water spins turbine blades.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-2

What energy source does hydropower use?

• waves
• wildlife

What is one drawback to hydroelectricity?

• It produces too much electricity.
• Wlildlife migrations are disrupted.

Tags

NGSS.MS-LS2-4

How does solar energy produce electricity?

• Sunlight breaks down petroleum.
• Sunlight is converted into electricity.