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Big round (ages 12 and up): Weather. 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. At about 23°F, snow crystals tend to grow into which shape?
- A. flat plates
- B. round balls
- C. long needles
2. When sunlight enters a raindrop, which color bends the most?
- A. yellow
- B. red
- C. violet
3. In the water cycle, what is it called when plants give off water vapor?
- A. infiltration
- B. precipitation
- C. transpiration
4. People say 10 inches of snow melts into 1 inch of water. Is that always true?
- A. yes, every time
- B. no, it is always 5 inches
- C. no, it changes from snow to snow
5. When water vapor changes straight into ice without becoming liquid, what is it called?
- A. deposition
- B. condensation
- C. sublimation
6. 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
7. About how hot can the air in a lightning channel get?
- A. about 50,000 °F
- B. about 5,000 °F
- C. about 500 °F
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. Winds blowing in different directions or speeds at different heights are called what?
- A. the jet stream
- B. trade winds
- C. wind shear
10. Hurricanes north of the equator spin in which direction?
- A. back and forth
- B. clockwise
- C. counterclockwise
Team: ______________________
| 1 | ABC |
| 2 | ABC |
| 3 | ABC |
| 4 | ABC |
| 5 | ABC |
| 6 | ABC |
| 7 | ABC |
| 8 | ABC |
| 9 | ABC |
| 10 | ABC |
Team: ______________________
| 1 | ABC |
| 2 | ABC |
| 3 | ABC |
| 4 | ABC |
| 5 | ABC |
| 6 | ABC |
| 7 | ABC |
| 8 | ABC |
| 9 | ABC |
| 10 | ABC |
The key (for the host: fold this page back)
- C: long needles. At about 5°F they grow as very flat plates instead.
- C: violet. Violet has the shortest wavelength of visible light, and red has the longest.
- C: transpiration. Water moves up from a plant's roots and escapes into the air from its leaves.
- C: 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: deposition. Sublimation is the opposite, when ice turns straight into vapor.
- 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.
- A: about 50,000 °F. That is about five times hotter than the surface of the Sun.
- 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: wind shear. Wind shear helps set up the spinning air inside storms that can form tornadoes.
- C: 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.s6345