The Journey of a Seed: teacher key

How Plants Grow, grade 5 edition, written for 5th grade. A seed waits for the right moment, then sprouts, drinks, makes food in sunlight and sends new seeds out into the world.

Read the book. Print this page for the key.

Questions and answers

1. What protects the baby plant inside a seed?
   • Chlorophyll
   • The seed coat (answer)
   • Pollen
2. Why might a gardener who soaks the soil too much have seeds that fail?
   • The seeds may not get enough oxygen (answer)
   • The seeds get too much sunlight
   • The seeds lose their wings
3. What do plants give off in photosynthesis?
   • Carbon dioxide
   • Pollen
   • Oxygen (answer)
4. What are stomata?
   • Seed coats
   • Tiny openings in leaves (answer)
   • Parts of a flower
5. How tall is the tallest known tree as of November 2026?
   • 379 feet (answer)
   • 37 feet
   • 3,400 feet

Words

• stomata: tiny leaf holes
• chlorophyll: green plant stuff
• pollination: moving pollen
• transpiration: plant water loss