Grade 3 · Science · Life science

3rd Grade Plant Life Cycles worksheets

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Plant Life Cycles

Grade 3 Science Worksheet

NameDate

Circle the answer.

1.
Look at the tomato plant life cycle. Which stage is missing?
- flower
- leaf
- root
- stem
2.
Which stage of a strawberry plant can make new seeds?
- the adult plant with flowers
- the young plant with leaves
- the seedling
- the seed in the soil
3.
What must happen to a flower before it can make seeds?
- its petals must fall off first
- it must lose all its leaves
- pollen must reach it
- its roots must stop growing
4.
How is a pine tree's life cycle different from an apple tree's?
- pine seeds form in cones, not in fruit
- pine trees never make seeds
- pine trees skip the seedling stage
- pine trees grow from spores
5.
A fern does not make seeds. What does a fern use to start new ferns?
- spores
- cones
- bulbs
- fruit
6.
Wind blows dandelion seeds far from the parent plant. How does this help?
- the seeds turn into flowers right away
- the seeds grow faster in the air
- the parent plant grows more flowers
- new plants get space to grow
7.
Maple seeds have wings and spin as they fall. What does this help the seeds do?
- grow leaves while falling
- travel away from the parent tree
- stay right under the parent tree
- hold more water
8.
A sunflower dies after it makes seeds. Does its life cycle end?
- no, the dead plant grows again from its stem
- yes, seeds cannot grow without the parent
- no, its seeds can grow into new sunflowers
- yes, the cycle stops when it dies
9.
Which stage comes right before an apple forms on a tree?
- the seed
- the apple blossom
- the seedling
- the young tree
10.
Corn grows from seed to sprout to a tall plant with ears of corn. What happens next?
- the tassels grow into roots
- the kernels can be planted as new seeds
- the corn turns back into a sprout
- the leaves become new kernels

3rd Grade Plant Life Cycles worksheet 1 – printable PDF — Download PDF: 1 2 3 4 5 6

About this worksheet

Plant life cycles show how plants grow, flower, make seeds, and begin the pattern again helps third graders connect observations with scientific explanations instead of memorizing isolated facts. Students may remember one stage but place it in the wrong order, or they may miss that pollination and seeds are what let the cycle continue. This worksheet uses short evidence-based situations so students must read the setup, identify the pattern, and choose the answer that fits the science idea named in the title. Students order stages, find missing stages in a cycle diagram, connect flowers and pollen to seeds, and compare how seeds, cones and spores start new plants.

Support versions use familiar examples and direct wording. Standard and challenge versions add closer distractors and require more comparison. Encourage your child to point to the evidence in the prompt before choosing an answer. If the answer does not explain the observation or solve the stated problem, it is probably a distractor. That habit builds careful science reasoning and prepares students for longer investigations.

What your child will learn

Order life-cycle stages
Connect flowers and pollen to seeds
Explain how seeds spread
Compare seeds, cones and spores

NGSS standard: 3-LS1-1

Worked example

A bean plant grows from a seed to a sprout, then an adult plant with flowers. Bees carry pollen, the flowers make pods with seeds, and each seed can start the cycle again.