Grade 3 Science · Life Cycles

Grade 3 Life Cycles Practice Test

Explore Grade 3 Science with five 10-question practice tests on the stages, order, growth, and changes in animal and plant life cycles.

Life Cycles Practice Tests

These Grade 3 Science practice tests help students identify the stages living things go through as they grow and change. Students explore butterfly, frog, plant, mammal, and bird life cycles.

Skills covered

  • Defining a life cycle
  • Putting life-cycle stages in order
  • Describing butterfly and frog changes
  • Explaining seed, seedling, and adult plant stages
  • Comparing life cycles of different organisms
  • Recognizing how habitats support growth

How to use these practice tests

Identify the organism first, then look for clues about its stage. Use words such as first, next, young, adult, and finally to place stages in order. Remember that different organisms have different life-cycle patterns.

For more Grade 3 Science practice, return to the Grade 3 Science category.

4. Test

Grade 3 Life Cycles Practice Tests

A 10-question Grade 3 Science practice test on life-cycle stages, growth and change in butterflies, frogs, plants, mammals, and birds.

Read each science question carefully. Identify the organism, place its stages in order, and choose the description that best explains its life cycle.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

What is often the first stage in a flowering plant’s life cycle?

Please select an answer first.

Correct answer: A

The correct answer is Seed.

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: Many flowering plants begin their life cycle as seeds.
  3. Check the choice: The correct choice is Seed.

Many flowering plants begin their life cycle as seeds.

2. QuestionMultiple choice

What is germination?

Please select an answer first.

Correct answer: B

The correct answer is When a seed begins to grow.

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: Germination is the beginning of growth from a seed.
  3. Check the choice: The correct choice is When a seed begins to grow.

Germination is the beginning of growth from a seed.

3. QuestionMultiple choice

What is a seedling?

Please select an answer first.

Correct answer: C

The correct answer is A young plant that has begun to grow.

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: A seedling is a young plant growing from a seed.
  3. Check the choice: The correct choice is A young plant that has begun to grow.

A seedling is a young plant growing from a seed.

4. QuestionMultiple choice

What can an adult flowering plant produce?

Please select an answer first.

Correct answer: D

The correct answer is Flowers, fruits, or new seeds.

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: A mature flowering plant can produce flowers, fruits, and seeds for a new generation.
  3. Check the choice: The correct choice is Flowers, fruits, or new seeds.

A mature flowering plant can produce flowers, fruits, and seeds for a new generation.

5. QuestionMultiple choice

What is one job of roots in a growing plant?

Please select an answer first.

Correct answer: A

The correct answer is They take in water and help hold the plant in the soil..

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: Roots absorb water and anchor the plant.
  3. Check the choice: The correct choice is They take in water and help hold the plant in the soil..

Roots absorb water and anchor the plant.

6. QuestionMultiple choice

Why are flowers important in many plant life cycles?

Please select an answer first.

Correct answer: B

The correct answer is They can help the plant make seeds..

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: Flowers are involved in producing seeds in many plants.
  3. Check the choice: The correct choice is They can help the plant make seeds..

Flowers are involved in producing seeds in many plants.

7. QuestionMultiple choice

What happens after a plant produces seeds?

Please select an answer first.

Correct answer: C

The correct answer is The seeds can begin new plant life cycles..

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: New seeds can grow into new plants, beginning another life cycle.
  3. Check the choice: The correct choice is The seeds can begin new plant life cycles..

New seeds can grow into new plants, beginning another life cycle.

8. QuestionMultiple choice

How can the environment affect a plant life cycle?

Please select an answer first.

Correct answer: D

The correct answer is Light, water, and temperature can affect how well a plant grows..

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: Growing conditions influence plant growth and development.
  3. Check the choice: The correct choice is Light, water, and temperature can affect how well a plant grows..

Growing conditions influence plant growth and development.

9. QuestionMultiple choice

Which sequence shows a simple flowering plant life cycle?

Please select an answer first.

Correct answer: A

The correct answer is Seed, seedling, adult plant, flower and seeds.

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: A seed grows into a seedling, then an adult plant produces flowers and seeds.
  3. Check the choice: The correct choice is Seed, seedling, adult plant, flower and seeds.

A seed grows into a seedling, then an adult plant produces flowers and seeds.

10. QuestionMultiple choice

Which statement best summarizes a plant life cycle?

Please select an answer first.

Correct answer: B

The correct answer is Plants begin from seeds, grow, mature, and produce new seeds..

  1. Read the life-cycle clue: Identify the organism and the stage or change described.
  2. Place the stage in order: This sentence describes the repeating stages of a flowering plant life cycle.
  3. Check the choice: The correct choice is Plants begin from seeds, grow, mature, and produce new seeds..

This sentence describes the repeating stages of a flowering plant life cycle.

Frequently asked questions about Grade 3 Life Cycles

What is a life cycle?

A life cycle is the series of stages a living thing goes through as it grows and changes.

Do all living things have the same life cycle?

No. All living things grow and change, but their stages and patterns can be different.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 3 Life Cycles questions in total.