Unit 4 - Lead in

What type of energy does the SUN give?

• biomass

• wind

• solar

• nuclear

Biomass is ......

• Energy that comes from the sun

• 
  energy from plant and animal waste

• 
  energy from wind

• Energy from water

Wind, geothermal, and solar energy are all what type of energy resources?

• 
  cheap

• renewable

• 
  potential

• 
  chemical 

Which of the following is a fossil fuel?

• 
  wind

• water

• air

• oil

What does hydroelectricity come from?

• 
  Harnessing the movement of air

• The sun's heat and energy

• Harnessing the movement of water  

One problem with ____ energy is that it produces radioactive waste. 

• 
  nuclear

• 
  tidal

• 
  solar

• wind

What is geothermal energy?

• 
  Energy from a potato

• 
  Heat from the sun

• 
  Heat from ice

• 
  Heat from the earth

Which of the following is NOT an alternative energy source?

• fossil fuels

• hydroelectric energy

• 
  geothermal energy

• wind energy

Hot water is pumped up from deep inside Earth and is used to heat homes or to generate electricity. This describes...

• 
  biomass

• geothermal energy

• 
  hydroelectric energy

What is a disadvantage of wind power?

• 
  There are too many rainy days in US

• Companies charge too much to make the wind blow

• 
  It is not always windy in some places

• 
  The sun is not always out