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      Different surfaces: plan

      Lesson details

      Learning outcome

      I can plan an investigation to compare how things move on different surfaces.

      Key learning points

      1. Surfaces can be different, ranging from very smooth to very rough.
      2. A comparative test investigation can be carried out to find out how different surfaces can affect how things move.
      3. Scientists make decisions about how to set up and carry out investigations.

      Keywords

      • Surface - The surface is the top or outside layer of something.

      • Rough - Rough surfaces are uneven or bumpy.

      • Smooth - Smooth surfaces are even.

      • Comparative test - In a comparative test, the thing that is being changed has labels, such as the types of materials.

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

      Common misconception

      All surfaces are only 2-dimensional. All surfaces are made by people (human-made).

      Provide many examples, with images, of different types of surface including natural surfaces and 3-dimensional surfaces.

      Teacher tip

      This lesson focuses on the working scientifically skill of planning a comparative test investigation within the context of comparing different surfaces. Children will carry out and review their investigation in Lesson 2 of this unit.

      Equipment

      See additional material for further support and guidance.

      Content guidance

      Risk assessment required - equipment

      Exploration of objects

      Supervision

      Adult supervision 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 of these is not a material?

      clay
      metal
      Correct answer: pencil
      wool

      Q2.
      How do these materials feel when you touch them? Match the material to the property.

      Correct Answer:cotton wool,soft

      soft

      Correct Answer:sandpaper,rough

      rough

      Correct Answer:glass,smooth

      smooth

      Q3.
      Which of these materials would feel the softest?

      Correct answer: wet clay
      wood
      rock

      Q4.
      How are "human-made" materials made?

      only by plants
      only by men
      Correct answer: only by people
      only by women

      Q5.
      Which one of these materials is human-made?

      wool
      stone
      wood
      Correct answer: glass

      Q6.
      Which of these shapes are 3-dimensional (3-D)?

      square
      Correct answer: sphere
      Correct answer: cube
      triangle

      6 Questions

      Q1.
      A surface is the layer of something.

      Correct Answer: top, outside, outer

      Q2.
      Which of these is not a surface?

      the peel on an orange
      a wooden floor
      a grass field
      Correct answer: soil under the ground

      Q3.
      How many things should be changed in a comparative test investigation each time a measurement is made?

      0
      Correct answer: 1
      2
      it does not matter

      Q4.
      Which thing would you change if you wanted find out how different types of hat affect the temperature of a person's head?

      the person wearing the hat
      Correct answer: the type of hat
      the temperature of the room

      Q5.
      Sort these activities into the order that a scientist would do them.

      1 - ask a question
      2 - plan the investigation
      3 - do the investigation

      Q6.
      You want to find out whether different shoes help a person run faster. What would you do to compare shoes in a fair way?

      Correct answer: keep the distance run the same each time.
      keep the same shoes each time.
      Correct answer: keep the running surface the same each time.
      Correct answer: keep the same runner

      To help you plan your 3 science lesson on: Different surfaces: plan, download all teaching resources for free and adapt to suit your pupils' needs...