Basic 2 · Science · Living and Non-Living Things

Parts of a Plant

In this topic you will name the main parts of a plant: roots, stem, leaves and flowers.

By the end of these notes you should be able to:

  • Name the main parts of a plant
  • Point to each part on a real plant
  • Draw and label a plant

What you already know

  • Plants around us (Basic 1)

Copy everything that has a blue line on its left into your notebook. The other parts are for reading.

Strand
Diversity of Matter
Sub-strand
Living and Non-Living Things
Indicator
B2.1.1.1.1 – Know the basic structure of plants (roots, stem leaves flowers)

Introduction

Pull up a young bean plant gently. Look at it from the bottom to the top. You will see roots, a stem, leaves and maybe flowers.

1. Main Parts of a Plant

Plant parts
PartWhere it isWhat it looks like
rootsunder the soilthin and thread-like
stemabove the soilholds the plant up
leaveson the stemflat and green
flowerson the stemcolourful
A bean plant with roots, stem, leaves and a flower labelled
Figure 1: Parts of a plant Draw a plant and label its four parts.Illustration: Sirbus

2. Different Plants, Same Parts

Grass, cassava and mango trees all have roots, stems and leaves.

A tree trunk is a big, hard stem.

Tip: Use a hand lens to see the tiny hairs on roots.

New words

roots
The part of a plant under the soil.
stem
The part that holds the plant up.
leaf
The flat green part of a plant.
flower
The colourful part of a plant.

Summary

  • The main parts of a plant are roots, stem, leaves and flowers.
  • Roots are under the soil.
  • A tree trunk is a big stem.

Class activity: Plant Detectives

  1. Look at the uprooted bean, grass and cassava cutting.
  2. Use the hand lens to look closely at each part.
  3. Point to the roots, stem and leaves.
  4. Draw one plant and label it.

You need: Uprooted bean, Grass plants, Cassava cutting, Hand lens

Exercises

Answer in your exercise book first, then check your answers.

  1. 1. Which part of a plant is under the soil?

    • A. Roots
    • B. Leaves
    • C. Flowers
    • D. Stem
    Show answer
    Answer: RootsRoots grow in the soil.
  2. 2. Which part holds the plant up?

    • A. Stem
    • B. Roots
    • C. Flower
    • D. Fruit
    Show answer
    Answer: StemThe stem supports the plant.
  3. 3. Most leaves are green.

    • A. True
    • B. False
    Show answer
    Answer: TrueLeaves are usually green.
  4. 4. A tree trunk is a root.

    • A. True
    • B. False
    Show answer
    Answer: FalseA tree trunk is a stem.
  5. 5. The colourful part of a plant is the ______.

    Show answer
    Answer: flowerFlowers are often colourful.
  6. 6. Name the four main parts of a plant.

    Show answer
    Answer: Roots, stem, leaves and flowers.These are the main parts.

Homework

  1. Look at a plant at home. Draw it and label its parts.