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Big round (ages 12 and up): Plants and trees. 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 the underground network of thread-like fungus strands called?
- A. xylem
- B. mycelium
- C. chlorophyll
2. In its first eight years, about how much does a young saguaro cactus grow?
- A. about 10 to 15 feet
- B. about 1 to 1.5 inches
- C. about 1 to 1.5 feet
3. Most pines drop their needles every few years. How long can bristlecone pine needles stay on?
- A. over 40 years
- B. about 1 month
- C. about 1 year
4. Plants make food using sunlight. What do we call making food from chemical energy instead?
- A. transpiration
- B. chemosynthesis
- C. germination
5. Pollination moves pollen from a flower's anther to which part?
- A. the root
- B. the sepal
- C. the stigma
6. In autumn, what does a tree send to its leaves to take apart chlorophyll?
- A. an enzyme
- B. a spark of electricity
- C. rainwater
7. Of the world's roughly 1,400 crop plants, about what share need animals to pollinate them?
- A. about 5%
- B. about 25%
- C. almost 80%
8. Fossils show relatives of coast redwoods thrived in which era, about 160 million years ago?
- A. the Bronze Age
- B. the Jurassic
- C. the Ice Age
Team: ______________________
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Team: ______________________
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The key (for the host: fold this page back)
- B: mycelium. The single strands are called hyphae, and a network can be tiny or miles wide.
- B: about 1 to 1.5 inches. Saguaros grow so slowly that an adult is about 125 years old.
- A: over 40 years. Long-lasting needles help the tree through years when it cannot grow new ones.
- B: chemosynthesis. It feeds life in the dark deep ocean, where no plants can grow.
- C: the stigma. The anther is the male part that makes pollen; the stigma is the female part that receives it.
- A: an enzyme. Once the green is gone, yellow and orange pigments that were hidden show through.
- C: almost 80%. Visits from bees and other pollinators also give bigger, tastier fruit.
- B: the Jurassic. Redwoods have grown in their present range for about 20 million years.
Every answer checked at its source. Play this round on a screen: peabody.kids/trivia/round?r=b3.tplants.s56062