Life cycles of flowering plants, conifers, mosses and ferns

Grade 7 Science Worksheet - Building Confidence

Circle the best answer.

1. 1.

   Ari studies a sunflower's life cycle. The plant has opened its flowers. What comes next in the cycle?

   • Spores drop from the leaves
   • Pollen reaches the stigma
   • A seed forms in the fruit
   • The seed sprouts

2. Read this first

   Cycle diagram (flowering plant), arrows run in order and back to the start

   Adult plant with flowers → pollen reaches the stigma → ? → seed forms as the ovary becomes fruit → seed sprouts into a seedling → adult plant with flowers.

3. 2.

   In Bo's flower cycle, pollen has reached the stigma. Which step comes next?

   • Sperm and egg join in the ovule
   • Spores land on damp soil
   • The seed sprouts into a seedling
   • The petals turn into seeds
4. 3.

   In Esme's flower cycle, a seed has formed inside a fruit. Which step comes next?

   • The fruit turns back into a flower
   • A spore grows a heart-shaped plant
   • The seed sprouts into a seedling
   • Pollen reaches the stigma
5. 4.

   Kira reads about a pine tree, a conifer. What does a pine make to start new trees?

   • Seeds on the scales of cones
   • Spores in sori
   • Spores in a capsule
   • Seeds inside fruit
6. 5.

   Luz finds soft green moss on a rock. What does moss make to start new plants?

   • Seeds, in a capsule on a stalk
   • Spores, in a capsule on a stalk
   • Seeds inside a small fruit
   • Pollen, in small cones
7. 6.

   Milo turns over a fern frond and sees rows of brown dots. What are the dots?

   • Sori, where spores form
   • Seeds, ready to fall
   • Tiny flowers
   • Pollen cones
8. 7.

   Moss on Noah's log grows a thin stalk with a small capsule on top. What does the capsule hold?

   • Fruit
   • Pollen
   • Spores
   • Seeds
9. 8.

   A spore drops from Pia's fern onto damp ground. What does it grow into first?

   • A pollen cone
   • A seed with a coat
   • A small heart-shaped plant
   • A flower
10. 9.

    Ren reads that an ovule holds an egg cell. After fertilization, what does the ovule become?

    • A fruit
    • A spore
    • A seed
    • A petal
11. 10.

    Tala eats a cherry with a seed (the pit) inside. Which flower part became the cherry around the seed?

    • The petals
    • The anther
    • The ovary
    • The stem