# Lesson 123: Plants need sunlight and water

🔬 SCIENCE (40 Lessons) • 🟢 A. Living and Nonliving

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## Objective

I can explain that plants need sunlight and water to live and grow. I can tell the difference between a healthy plant and a weak plant.

## Materials

- Two small plants (real or pictures)
- One plant that is watered and kept in the sun, and one that is not
- Pencil and notebook or scrap paper

## Mini-lesson — Plants need sunlight and water

Plants are living things. They grow and change.

Plants need:

- Sunlight to make food in their leaves.
- Water to move food through the plant.

Healthy plants

- Have green leaves
- Stand upright with strong stems
- Grow new leaves and roots

Weak plants (not enough sun or water):

- Leaves turn yellow or brown
- Stem becomes soft or droopy
- They stop growing

Plants cannot walk to get food. They stay in one place and need us to give water and place them in sunlight.

Picture strip: Sun + water = strong plant

Healthy vs Weak

## Guided Practice — Compare two plants

You will look at two plants and describe what you see.

1. Place two plants together (or pictures).
2. Point to the healthy plant. Say: “It has green leaves.”
3. Point to the weak plant. Say: “It looks droopy or brown.”
4. Ask: Which plant got sunlight? Which one got water?
5. Write or say one idea: “Plants need sun and water.”
6. Trace words using the pad: plant, sun, water, leaf, grow.

Tracing Pad
Lines
Trace
Pen

## Practice 1 — Spot healthy or weak

Draw or look at two plants. Label one healthy and one weak. Write one reason for each.

- “This plant is healthy. It has green leaves.”
- “This plant is weak. It has dry leaves.”

## Practice 2 — What does a plant need?

Write or draw the two things every plant needs to grow.

1. Draw a sun
2. Draw water drops or a watering can

Under each drawing, write the word sun or water.

## Practice 3 — What happens if…?

Choose a plant and ask: “What if it gets no sunlight?” or “What if it gets no water?”

- Draw or explain what the plant might look like.
- Use simple words like brown, droopy, weak.

## Quick Check — Plants need sunlight and water

Answer each question. Think about sunlight, water, and growth.

1) Plants are…

Living things Toys Rocks
Plants are living things that grow.

2) What does a plant need to grow?

Music A blanket Sunlight and water
Plants need sunlight and water to grow.

3) Which plant would be healthy?

A plant with green leaves A plant with brown leaves A plastic toy plant
Green leaves show it is healthy.

4) Why would a plant be weak?

It eats too much food It gets no sunlight or water It sleeps too late
Plants need sun and water to grow well.

5) What do leaves help a plant do?

Run away Make loud sounds Make food from sunlight
Leaves use sunlight to make food.

6) Roots help plants…

Drink water Jump Fly
Roots take in water from the soil.

7) If a plant grows big, it…

Is not living Is healthy Sleeps all day
Growing shows it is healthy.

8) Which plant gets sunlight?

Plant in a dark box Plant under a bed Plant near a window
Plants near light can get sun.

9) What happens to a plant with no water?

It grows fast It becomes weak It starts running
No water makes it weak.

10) Which picture helps plants?

A watering can A pillow A teddy bear
Watering cans give water.

11) Why do plants stay in one place?

They are shy They are too heavy They do not have legs
Plants cannot move like animals.

12) Why must we water plants?

To help them live To make them jump To play music
Water helps plants live.

13) A plant in the sun and water looks…

Flat Healthy Hungry
Good light and water make it strong.

14) What should you do for a droopy plant?

Sing to it Put it in a box Give it sun and water
Plants need sun and water to recover.

15) Which sentence is true?

Plants need sunlight and water. Plants like candy. Plants grow without anything.
Plants cannot grow without sun and water.

## Assessment (parent/teacher)

Student can say that plants are living things. Student can explain that plants need sunlight and water. Student can compare a healthy and a weak plant. Student can use words like leaf, stem, root, water, sun. Student can answer questions about how plants grow.

## Exit ticket (student)

😀 I understand what plants need to grow. 🙂 I know some plant needs but want more practice. 😅 I am still learning about plant needs.

#### Next time I will practise…

Finding healthy plants outside Giving water to a plant Drawing plants with roots, leaves, and sun
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