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      Plants without water

      Lesson details

      Learning outcome

      You can find out and describe what happens when plants do not have water.

      Key learning points

      1. Plants are living things, they need water to grow, stay alive and and keep healthy.
      2. Without water, a plant can dry out, drop leaves, lose its strength and begin to wilt.
      3. Changes in plant growth can be compared and described using observation skills.
      4. Different plants can survive without water for different amounts of time.
      5. Unhealthy plants without water can sometimes be recovered with water within a short period of time.

      Keywords

      • Plant - A plant is a living thing that often has roots, stem and leaves.

      • Water - All living things need water to stay alive.

      • Survive - A plant will survive, or stay alive, when it has everything it needs.

      • Compare - We compare things by looking at what is the same and what is different.

      • Record - We record in science to keep information so that it can be looked at again.

      Common misconception

      Pupils may think that plants need lots of water everyday

      Remind pupils that different plants need different amounts of water, and a plant with too much, or not enough, water could become unhealthy

      Teacher tip

      Pupils will be observing the plants growing without water since lesson 3. They will compare these to the plants growing with everything (water, warmth and light). They will add today's observations without water to their chosen method from lesson 4

      Equipment

      Pupils will need equipment for their chosen method of recording (ipads, drawing materials etc.)

      Licence

      This content is © Oak National Academy Limited (2026), licensed on Open Government Licence version 3.0
      except where otherwise stated. See Oak's terms & conditions
      (Collection 2).

      Lesson video

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      Prior knowledge starter quiz

      6 Questions

      Q1.
      Plants need warmth, and light to grow.

      Correct Answer: water

      Q2.
      Which thing is not living?

      Correct answer: water
      tree
      tulips

      Q3.
      What does bloom mean?

      Correct answer: When a flower opens.
      When a flower closes.
      When leaves turn green.
      When leaves fall off.

      Q4.
      An unhealthy plant that can no longer stand strong, tall and straight has begun to .

      Correct Answer: wilt, wilting, droop, flop

      Q5.
      When a plant begins to wilt, which part of the plant can no longer stand tall?

      flowers
      Correct answer: stem
      roots

      Q6.
      Which part of a plant is shown in the picture?

      An image in a quiz
      leaves
      stem
      Correct answer: roots

      6 Questions

      Q1.
      Which photo was taken of the grass after there was no rain for three weeks?

      photo 1
      photo 2
      Correct answer: photo 3

      Q2.
      Match the amount of time to what happened to plants growing with no water.

      Correct Answer:one day,plant is green, shiny and strong
      Correct Answer:one week,plant looks dull and begins to wilt
      Correct Answer:one month,plant is dry, crispy, floppy and wilted

      Q3.
      What type of living thing is a cactus?

      An image in a quiz
      human
      other animal
      Correct answer: plant
      something else

      Q4.
      A cactus can grow in very dry conditions. Match special parts of a cactus with how it helps it to survive in dry weather.

      An image in a quiz
      Correct Answer:long roots,to grow down to 'search' for water
      Correct Answer:large thick stem,to store water
      Correct Answer:small leaves or spines,to stop leaves from losing water and drying out

      Q5.
      How might you know that a plant needs water?

      The plant pot feels cold.
      Correct answer: The soil feels dry.
      The leaves look blue.

      Q6.
      Sofia spots this unhealthy plant and thinks it will die soon. What should she do?

      An image in a quiz
      Throw it away - it is wilted.
      Cut its leaves off - they cannot be saved.
      Correct answer: Water it - sometimes plants can be recovered with water within a short time.

      To help you plan your 2 science lesson on: Plants without water, download all teaching resources for free and adapt to suit your pupils' needs...