Energy Quiz

1. How many kilowatt hours of electricity does the average American household use in a year?
900
2000
14000
A Million

2. In 2009, what percentage of electricity in the U.S. came from burning coal?
1%
10%
30%
45%

3. What does "photosynthesis" mean?
Taking pictures
Man - made
Putting together with light
Scrapbooking

4. What happens during photosynthesis?
The plant's leaves break and fall off
Plants combine oxygen and moonlight to create carbon dioxide
Plants use sunlight and combine it with carbon dioxide and water to create oxygen and sugar
None of the above

5. What are some problems with today's solar panels?
They are hard and brittle and can't repair themselves when broken
They can be very expensive
On cloudy days, they don't work as well
All of the above

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Correct answers: