🔬 ScienceGrade 2Lesson 2
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Learn Plant Parts and Their Roles

How to use: Download the PDF to print the worksheet. Then use this page to repeat activities and check answers.

Learning Objectives

  • 1Name the five main parts of a plant — root, stem, leaf, flower, and seed
  • 2Describe the role each plant part plays
  • 3Explain what photosynthesis means in simple words
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Mini Lesson

Plants can't walk, talk, or eat at a table — but every single part of a plant has an important job that keeps it alive and growing!

Roots — the anchor and drinker

  • Roots grow underground and hold the plant firmly in the soil.
  • They soak up water and nutrients from the soil and send them up the plant.
  • Example: Carrots and beets are roots we can eat.

Stem — the highway

  • The stem supports the plant and holds it upright.
  • It carries water and nutrients from the roots to the leaves and flowers — like a straw.

Leaves — the food factory

  • Leaves capture sunlight and use it — along with water and air — to make food for the plant.
  • This process is called photosynthesis.

Flower and Seed

  • The flower attracts insects that help the plant reproduce.
  • The seed is made inside the flower; it can grow into a brand-new plant.
Vocabulary
Root
The underground part of a plant that absorbs water and nutrientse.g. A carrot is a root.
Stem
The part of a plant that supports it and carries water upe.g. The green stem of a sunflower holds the head high.
Leaf
The part of a plant that makes food using sunlighte.g. The wide leaves of a maple tree soak up light.
Flower
The colorful part that attracts insects and makes seedse.g. A rose is a flower.
Seed
A small part made by a flower that can grow into a new plante.g. An apple seed can grow into an apple tree.
Photosynthesis
The process leaves use to make food from sunlight, water, and aire.g. Leaves stay green because of photosynthesis.
Labeled plant diagramA simple flowering plant diagram with five labeled parts: roots, stem, leaf, flower, and seed.Parts of a PlantFlowerSeedLeafStemRoots
A labeled flowering plant showing roots, stem, leaf, flower, and seed.
Plant parts and their rolesA table listing each plant part alongside its main job.What does each part do?RootsStemLeafFlowerSeedAbsorb water & nutrientsSupport & carry water upMake food using sunlightAttract insects; reproduceGrow into a new plant
A role table matching each plant part to its main job.
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Ask yourself: Which part drinks water? Which part makes food? Which part makes new plants?

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Guided Practice

Sketch the plant diagram from your paper worksheet and label each part. Then use the Tracing Pad to practice the science words from this lesson.

Tracing Pad

Tip: As you trace each word, say its job out loud — for example, "stem — carries water up."

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Exercises

Match each plant part on the left to the job it does on the right.

1. What is the main job of a plant's roots?

2. Why does a plant need a stem?

3. Which plant part is the food factory?

4. What does a flower do for the plant?

5. What can a seed become?

6. What is photosynthesis?

7. Where do a plant's roots grow?

8. A carrot is an example of which plant part?

9. How does water travel from the roots to the leaves?

10. Why does a plant need ALL of its parts?

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Assessment

Parent / Teacher Checklist

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