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Big round (ages 12 and up): Plants and trees · 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. Plants make food using sunlight. What do we call making food from chemical energy instead?
- A. chemosynthesis
- B. transpiration
- C. germination
2. Winds blowing in different directions or speeds at different heights are called what?
- A. trade winds
- B. the jet stream
- C. wind shear
3. What is the underground network of thread-like fungus strands called?
- A. xylem
- B. mycelium
- C. chlorophyll
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. Of the world's roughly 1,400 crop plants, about what share need animals to pollinate them?
- A. almost 80%
- B. about 5%
- C. about 25%
6. In autumn, what does a tree send to its leaves to take apart chlorophyll?
- A. a spark of electricity
- B. rainwater
- C. an enzyme
7. In its first eight years, about how much does a young saguaro cactus grow?
- A. about 1 to 1.5 inches
- B. about 1 to 1.5 feet
- C. about 10 to 15 feet
8. Pollination moves pollen from a flower's anther to which part?
- A. the root
- B. the stigma
- C. the sepal
9. Fossils show relatives of coast redwoods thrived in which era, about 160 million years ago?
- A. the Bronze Age
- B. the Ice Age
- C. the Jurassic
10. Most pines drop their needles every few years. How long can bristlecone pine needles stay on?
- A. over 40 years
- B. about 1 year
- C. about 1 month
Team: ______________________
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Team: ______________________
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The key (for the host: fold this page back)
- A: chemosynthesis. It feeds life in the dark deep ocean, where no plants can grow.
- C: wind shear. Wind shear helps set up the spinning air inside storms that can form tornadoes.
- B: mycelium. The single strands are called hyphae, and a network can be tiny or miles wide.
- 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: almost 80%. Visits from bees and other pollinators also give bigger, tastier fruit.
- C: an enzyme. Once the green is gone, yellow and orange pigments that were hidden show through.
- A: about 1 to 1.5 inches. Saguaros grow so slowly that an adult is about 125 years old.
- B: the stigma. The anther is the male part that makes pollen; the stigma is the female part that receives it.
- C: the Jurassic. Redwoods have grown in their present range for about 20 million years.
- A: over 40 years. Long-lasting needles help the tree through years when it cannot grow new ones.
Every answer checked at its source. Play this round on a screen: peabody.kids/trivia/round?r=b3.tplants*8,weather*2.s367