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?

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

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?

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

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

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

   On a hike, Jun finds a fern with feathery fronds. What does a fern make to start new plants?

   • Seeds
   • Spores
   • Seeds inside fruit
   • Pollen cones
6. 5.

   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
   • Seeds inside fruit
   • Spores in a capsule
7. 6.

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

   • Seeds, in a capsule on a stalk
   • Seeds inside a small fruit
   • Spores, in a capsule on a stalk
   • Pollen, in small cones
8. 7.

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

   • Tiny flowers
   • Sori, where spores form
   • Pollen cones
   • Seeds, ready to fall
9. 8.

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

   • Pollen
   • Fruit
   • Seeds
   • Spores
10. 9.

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

    • A flower
    • A pollen cone
    • A seed with a coat
    • A small heart-shaped plant
11. 10.

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

    • A spore
    • A fruit
    • A petal
    • A seed