Vocabulary
Comprehension
More comprehension
100
If something expands it gets....
What is larger?
100
The Dutch most likely called the sea waterwolf because...
What is because it is threatening like a wolf?
100
What would the effect of wind turbines producing 10% of America's electrical power?
What is it would stop pollution made by 900,000 tons of fossil fuel?
200
What does flickering mean?
What is going on and off quickly?
200
Which device was the first to harness wind power?
What is sailboats?
200
What does it mean that wind is renewable energy?
What is wind power is an energy source we cannot use up?
300
To propel something means to...
What is move it forward?
300
Wind is caused by...
What is the sun warming the earth unevenly?
300
According to the selection, what do today's wind turbines look like?
What are giant airplane propellors or toy pinwheels?
400
Wind turbines convert wind energy into electricity. In this sentences convert means....
What is changes something into something else?
400
The wind is not a perfect source of energy because...
What is the difficultyin predicting the amount of wind?
400
What are 2 reasons wind is a good source of energy?
What is it is renewable, it does not cause pollution, it is safe, it is free?
500
Conservations means...
What is protection of our world's natural resources?
500
Why were windmills so popular?
What is they made jobs easier?
500
What replaced the wind mill in Europe in the 1800's?
What is the steam engine?
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