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Test your reading of this issue of MichiganScience. Students in grades six through 12 can compete for a $100 gift certificate from Edmund Scientific. The winner will be determined by a random drawing from entries with all the correct answers. Please send entries to MichiganScience@mackinac.org.
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1. According to the U.S. Energy Information Administration, by what level did carbon dioxide emissions from the burning of fossil fuels in the United States increase from 2002 to 2006?
A. 1.7 percent.
B. 7.1 percent.
C. 27.7 percent.
D. 0.7 percent.
2.What occurred in Tunguska, Siberia, in 1908?
A. A hydrogen
bomb exploded.
B. A dynamite
factory caught fire.
C. An asteroid
exploded.
D. The planet
Jupiter was discovered.
3. How did the mastodon discovered by Rich and Annette Schneider die?
A. It was
killed by hunters.
B. Wasting
disease.
C. It was
killed by wolves.
D. Old age.
4. How many mastodon skeletons have been found in Michigan in the past 100 years?
A. 250.
B. 200.
C. 2000.
D. 275.
5. How many Michigan homes are anticipated to receive weatherization upgrades as part of the federal stimulus program?
A. 3,300.
B. 33,000.
C. 13,000.
D. 23,000.
6. What tool devised by Princeton researchers measures airtightness and locates heat leaks in homes?
A. A vacuum
door.
B. A blower
door.
C. An
insulation door.
D. A
resistance door.
7. What qualities do phosphates add to washing products?
A. Raise wash
efficiency.
B. Prevents
film forming on glassware.
C. Both A and
B.
D. None of the
above.
8. In 1977, the level of phosphates used in laundry detergents was lowered to what percentage?
A. 1.7
percent.
B. 8.7 percent.
C. 30 percent.
D. 0.5 percent.
9. According to University of Hawaii researchers, how much carbon dioxide was released from deep-ocean warming during the Paleocene-Eocene Thermal Maximum?
A. 11 million
tons.
B. 11 billion tons.
C. 11 trillion
tons.
D. 16 tons.
10. What percentage of the United States' electricity is derived from fossil fuels?
A. Just
over 91 percent.
B. Just
under 65 percent.
C. Just
over 75 percent.
D. Just
under 55 percent.
