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      Nutrients and fertilisers for plants (non-statutory)

      Lesson details

      Learning outcome

      I can explain how soil quality can be changed using fertilisers.

      Key learning points

      1. Soil is an important source of nutrients for plants.
      2. Some plants may struggle to grow and survive in certain types of soil.
      3. Nutrients can be added to soil using fertilisers.
      4. Fertilisers added to soil make plants grow bigger and be more healthy.
      5. Fertilisers can be organic, such as compost and manure, or human-made.

      Keywords

      • Soil - Soil is ground up rock mixed up with plant and animal remains.

      • Organic - Anything which is alive or was once alive is organic.

      • Nutrients - A nutrient is any substance that plants or animals need in order to live or grow.

      • Fertiliser - A substance containing nutrients that we can add to soil to make it better for growing plants.

      • Human-made - Something that is human-made is made or caused by humans.

      Common misconception

      Pupils may think that fertiliser added to plants is their ‘food’ and so is necessary for their survival.

      Explain that plants do not eat food in the same way that we do but they do need nutrients to survive, grow and stay healthy. They get these nutrients from soil and we can add fertiliser to soil to increase the nutrients within it.

      Teacher tip

      Setting up a simple observation over time investigation alongside this lesson would help pupils to see how fertilisers affect plant growth by purchasing two of the same plants from a supermarket and adding fertiliser to the soil of one of them.

      Equipment

      none required

      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.
      Which part of the plant usually grows beneath the soil?

      flowers
      leaves
      stem
      Correct answer: roots

      Q2.
      What does it mean to survive?

      to get bigger
      Correct answer: to stay alive
      to die
      to build a home

      Q3.
      Something that is human-made is …

      found in nature.
      Correct answer: created by humans.
      a part of a human body.

      Q4.
      What is soil made from?

      Correct answer: organic matter, air, water and tiny pieces of rock
      mud, air, water and small pieces of dirt
      organic matter, mud, dirt and small pieces of plastic
      insects, water, plants and tiny pieces of rock

      Q5.
      Which of these statements about soil is correct?

      Soil is not useful.
      All soil is the same.
      Soil is just another word for ‘dirt’.
      Correct answer: There are different types of soil.

      Q6.
      Which of these is not a type of soil?

      sandy
      silt
      Correct answer: muddy
      clay
      loam

      6 Questions

      Q1.
      To grow well, plants need from soil.

      Correct Answer: nutrients, nutrition, water

      Q2.
      We can add more nutrients to soil by …

      adding more plants to the soil.
      keeping it in the sunlight.
      Correct answer: using fertilisers.

      Q3.
      Which of these statements is correct?

      All plants can grow in sandy soil because it is full of nutrients.
      Correct answer: Some plants may struggle to grow in certain types of soil.
      All plants are able to grow in any type of soil.

      Q4.
      How do fertilisers affect plants?

      Correct answer: They can help them grow bigger and be more healthy.
      They can make them need less water.
      They can provide the plant with more sunlight.
      They can make the flowers change colour.

      Q5.
      fertilisers are better for the environment than human-made fertilisers, which can damage the habitats they are used in.

      Correct Answer: organic, natural

      Q6.
      Which of these fertilisers are organic?

      Correct answer: compost
      fertiliser granules
      Correct answer: manure
      liquid plant food

      To help you plan your 3 science lesson on: Nutrients and fertilisers for plants (non-statutory), download all teaching resources for free and adapt to suit your pupils' needs...