πŸ”¬ ScienceLevel 1Lesson 3

Plants Need Sunlight and Water

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

Learning Objectives

  • 1Name what plants need to survive
  • 2Explain what sunlight, water, soil, and air each do for a plant
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Mini Lesson

Have you ever wondered why a plant by a sunny window grows tall, but a plant in a dark corner wilts? Plants are living things β€” and like all living things, they have needs.

Plants need sunlight

  • Sunlight gives plants the energy to make their own food.
  • This food-making process is called photosynthesis.
  • Example: Leaves face the sun to catch as much light as possible.

Plants need water

  • Roots soak up water from the soil and send it up the stem.
  • Water carries minerals from the soil to every part of the plant.
  • Without water, a plant will wilt and die.

Plants need soil and air

  • Soil holds the roots in place and stores minerals the plant uses.
  • Plants take in a gas called carbon dioxide from the air through tiny holes in their leaves.
  • They use carbon dioxide and sunlight together to make food.
A plant showing its four needs: sunlight, water, soil, and airA plant in soil with arrows pointing to sunlight from above, water droplets at the roots, soil at the base, and an air swirl near the leaves.sunsoil β€” holds roots & mineralswaterair
A plant uses sunlight, water, soil, and air to survive.
What happens when a plant loses each needTwo columns: healthy plant with sunlight and water on the left, wilting plant without them on the right.With needsWithout needstall and healthywilting and weak
A plant with its needs (left) stays healthy. Without them (right) it wilts.
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Ask yourself: "What would happen if I covered the plant's leaves? What if I stopped watering it?"

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Guided Practice

Sketch a plant from your paper worksheet and label what it needs. Then use the Tracing Pad to practice the science words from this lesson.

Tracing Pad

Tip: Sunlight + water + soil + air = a happy, healthy plant!

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Exercises

1. What do plants need to survive?

2. What does sunlight do for a plant?

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

4. What does soil do for a plant?

5. What happens to a plant if it does not get water?

6. What is the main job of a plant's leaves?

7. Why do plants need air?

8. How do plants make their own food?

9. A plant is placed in a completely dark room. What will happen?

10. Why do plants need the same things as other living things?

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Assessment

Parent / Teacher Checklist

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