Life Cycles — Answer Key
Part A: Sort the Words
Sort each word or number into the correct category box.
1. Sort each item into the correct category.
Plant Life Cycle Stage
seedsproutflower Not a Plant Stage
tadpolechrysaliscaterpillar A plant goes through the stages seed, sprout, adult plant, and flower. Chrysalis, tadpole, and froglet belong to animal life cycles.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. A plant life cycle begins with a seed.
A plant life cycle starts when a seed is planted in the soil and begins to grow.
2. A seed needs water and sunlight to grow.
Seeds need water and sunlight to sprout and grow into healthy plants.
3. A young plant that pushes out of the soil is called a sprout.
A sprout is a young plant that has just pushed through the soil and started to grow.
4. Flowers make seeds so new plants can grow.
Flowers produce seeds that can grow into new plants, continuing the life cycle.
5. A fully grown plant with flowers is called an adult plant.
An adult plant is fully grown and produces flowers that make seeds for new plants.
Part C: True or False?
Read each statement. Circle True or False.
1. A seed needs water to start growing.
True False
True — A seed needs water to soften its outer shell and begin the process of sprouting.
2. A chrysalis is part of the plant life cycle.
True False
False — A chrysalis is part of the butterfly life cycle, not the plant life cycle.
3. Flowers help plants make new seeds.
True False
True — Flowers produce seeds that allow the plant life cycle to start again.
4. Plants grow from leaves, not seeds.
True False
False — Most plants grow from seeds, not from leaves. Seeds contain everything a new plant needs to start growing.