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Big round (ages 12 and up): Weather · Planet Earth. Pages: the ten question cards, two answer sheets to a page (print one page per two teams), and the key on the last page, to fold back.
1. What is hoarfrost?
- A. rain that freezes in the air
- B. snow blown into drifts
- C. ice crystals that grow right onto a cold surface
2. Which mountain's peak is the farthest from the center of the Earth?
- A. Mount Everest
- B. Mount Chimborazo
- C. Mount Kilimanjaro
3. Earth's axis is tilted by about how many degrees?
- A. about 5 degrees
- B. about 23.5 degrees
- C. about 45 degrees
4. Which is Earth's thickest layer, at about 2,900 kilometers?
- A. the mantle
- B. the inner core
- C. the crust
5. Winds blowing in different directions or speeds at different heights are called what?
- A. trade winds
- B. the jet stream
- C. wind shear
6. When water vapor changes straight into ice without becoming liquid, what is it called?
- A. sublimation
- B. condensation
- C. deposition
7. People say 10 inches of snow melts into 1 inch of water. Is that always true?
- A. no, it is always 5 inches
- B. no, it changes from snow to snow
- C. yes, every time
8. Officially, a blizzard has winds faster than what speed?
- A. 35 miles per hour
- B. 15 miles per hour
- C. 75 miles per hour
9. When sunlight enters a raindrop, which color bends the most?
- A. red
- B. yellow
- C. violet
10. Hurricanes north of the equator spin in which direction?
- A. counterclockwise
- B. clockwise
- C. back and forth
Team: ______________________
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Team: ______________________
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The key (for the host: fold this page back)
- C: ice crystals that grow right onto a cold surface. It forms when the surface is colder than the frost point of the air around it.
- B: Mount Chimborazo. Earth bulges at the equator, and Chimborazo sits just one degree south of it.
- B: about 23.5 degrees. The Tropic of Cancer and Tropic of Capricorn sit at 23.5 degrees for the same reason.
- A: the mantle. NASA compares the hot rock of the mantle to thick, slow-moving caramel.
- C: wind shear. Wind shear helps set up the spinning air inside storms that can form tornadoes.
- C: deposition. Sublimation is the opposite, when ice turns straight into vapor.
- B: no, it changes from snow to snow. Snow scientists say the ten-to-one rule is not always right: snow holds different amounts of water.
- A: 35 miles per hour. The snow must also cut how far you can see to under a quarter mile, for more than 3 hours.
- C: violet. Violet has the shortest wavelength of visible light, and red has the longest.
- A: counterclockwise. South of the equator they spin the other way, because of Earth's rotation.
Every answer checked at its source. Play this round on a screen: peabody.kids/trivia/round?r=b3.tweather*8,earth*2.s74