True or false? The energy from the sun can be used to generate electricity.

• True
• False

True or false? Renewable energy sources can be used again and again- they will never run out.

• True
• False

Tags

NGSS.HS-ESS3-2

NGSS.HS-ESS3-3

NGSS.HS-ESS3-4

True or false? Electricity is an example of energy transfer.

• True
• False

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

True or false? We can only generate electricity using nonrenewable energy resources.

• True
• False

Tags

NGSS.HS-PS3-3

True or false? An electric current is a way of transferring energy.

• True
• False

The following statements describe how a wind turbine works. Which statement is not correct?

• The wind pushes the blades of a wind turbine, transferring its motion energy to the turbine.
• The turbine stores the energy.
• The turbine then drives the generator to create electricity.
• The generator produces harmful waste products.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-5

Hydropower is a source of green energy. It has many advantages but also some disadvantages.

Select the Advantages of hydropower.

• Animal habitats can be destroyed when the valley is flooded.

• The dam gates can be shut off so that water is released when needed.

• Only valleys where the climate is wet and the rivers do not run dry are suitable.

• Hydropower does not cause pollution of the air, as fossil fuels do.