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Science lesson plan · 2nd grade (Year 3 in England) · 45 minutes

Choosing materials for a job

Materials and their properties

CCSS NGSS.2-PS1-2CCSS NGSS.K-2-ETS1-1England: KS1 Y2 Uses of everyday materials

Objective and success criteria

Students will: Choosing materials for a job.

  • I can answer questions on today's skill on my own, without help.
  • I can explain each step and say why it works.
  • I can check my answer and spot a mistake.

Before and after

Needs first: Properties of materials

Leads to: the next skill in this area.

Materials: A tray of everyday objects, Sorting hoops, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).

Warm-up · 5 min

  • Quick retrieval from earlier learning (Properties of materials). Students answer on mini whiteboards.
  • Show answers together and note who needs support in the main task.
  1. A rubber band can be pulled longer and goes back. It is… (transparent / brittle / stretchy (elastic) / rigid) → stretchy (elastic)Prompt: What happens when you pull it?
  2. Which of these is attracted to a magnet? (an aluminium (aluminum) drinks can / a wooden pencil / a plastic ruler / a steel paper clip) → a steel paper clipPrompt: Only a few metals are magnetic, such as iron and steel.
  3. Properties of materials: which statement is true? (All metals are magnetic. / Fabric is always waterproof. / Iron and steel are attracted to magnets. / Wood is transparent.) → Iron and steel are attracted to magnets.Prompt: Think about a coin, a window and a raincoat.

Hook · 5 min

  • Pass round objects made of different materials and ask why each one was chosen.
  • Share the objective: Choosing materials for a job. Read the success criteria together.

I do: model it · 10 min

  • Work through the example out loud, saying why you do each step, not just what you do.
  • Example: Why is a towel made of fabric like cotton?
  • Step 1: Absorbent fabric soaks up water from your skin.
  • Step 2: So the answer is: It is soft and absorbent
  • Answer: It is soft and absorbent
  • Pause after each step and ask a student to say what comes next.

We do: guided practice · 10 min

  • Do these together. Students try each step on whiteboards before you reveal it.
  • Use the hints as prompts rather than giving the answer.
  1. Why are windows made of glass? (It is soft / It is transparent, so light comes in / It is magnetic / It is absorbent) → It is transparent, so light comes inPrompt: What do we want to do through a window?
  2. Which material is best for the handle of a frying pan? (copper / glass / a hard plastic that is a thermal insulator / ice) → a hard plastic that is a thermal insulatorPrompt: The handle must not get hot.

You do: independent practice · 10 min

  • Students work on the student sheet. Circulate and check the first two answers of every student early.
  • Students who finish: write a question of their own for a partner, with the answer.

The 8 questions are on the student sheet below, with answers in the key.

Exit ticket · 5 min

  • Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
  1. Choosing materials: which statement is true? (Metal is best for a window you want to see through. / Glass is a good material for a football. / Cotton wool is good for a raincoat. / A material's properties make it suitable for a job.) → A material's properties make it suitable for a job.Prompt: Match the property to the job.
  2. Why are car tyres (tires) made of rubber? (Rubber is a metal / Rubber absorbs water / Rubber is flexible and grips the road / Rubber is transparent) → Rubber is flexible and grips the roadPrompt: Think about grip and bumps in the road.

Watch out for

  • Everyday meanings of words getting in the way of the science meaning: define key words explicitly.
  • Remembering facts without the reason: ask "why?" and "what is the evidence?"

Support and stretch

Support

  • Review first: Properties of materials.
  • Use concrete materials: a tray of everyday objects.
  • Give the first step of each question, or a partly worked example to finish.
  • Pair with a confident partner for the guided practice.

Stretch

  • Explain a common mistake in writing and how to fix it.
  • Write a word problem that uses today's skill, then solve a partner's.

Homework and more practice

Free online practice with hints and printable worksheets for this skill: eurekami.com/science/grade-2.

Free lesson plan from eurekami.com/lesson-plan-builder

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Choosing materials for a job

Name

Date

Score/ 8

  1. Question 1

    Why would a chocolate teapot be a bad idea?

    • A. Chocolate is too heavy
    • B. Chocolate is transparent
    • C. Chocolate is magnetic
    • D. Chocolate melts when hot water is poured in

  2. Question 2

    Choosing materials: which statement is true?

    • A. A material's properties make it suitable for a job.
    • B. Glass is a good material for a football.
    • C. Cotton wool is good for a raincoat.
    • D. Metal is best for a window you want to see through.

  3. Question 3

    Why are car tyres (tires) made of rubber?

    • A. Rubber is flexible and grips the road
    • B. Rubber is transparent
    • C. Rubber absorbs water
    • D. Rubber is a metal

  4. Question 4

    Why are electrical wires made of copper covered in plastic?

    • A. Copper is magnetic and plastic is shiny
    • B. Copper conducts electricity; plastic insulates for safety
    • C. Copper is see-through
    • D. Plastic conducts electricity better than copper

  5. Question 5

    Why is a towel made of fabric like cotton?

    • A. It is hard
    • B. It is soft and absorbent
    • C. It is transparent
    • D. It is waterproof

  6. Question 6

    Why are windows made of glass?

    • A. It is soft
    • B. It is absorbent
    • C. It is transparent, so light comes in
    • D. It is magnetic

  7. Question 7

    Which material is best for a raincoat?

    • A. glass
    • B. waterproof plastic-coated fabric
    • C. cotton wool
    • D. paper

  8. Question 8

    Bridges are often made of steel. Which property matters most?

    • A. transparency
    • B. strength
    • C. softness
    • D. absorbency

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Answer key: Choosing materials for a job

  1. 1. D. Chocolate melts when hot water is poured in

  2. 2. A. A material's properties make it suitable for a job.

  3. 3. A. Rubber is flexible and grips the road

  4. 4. B. Copper conducts electricity; plastic insulates for safety

  5. 5. B. It is soft and absorbent

  6. 6. C. It is transparent, so light comes in

  7. 7. B. waterproof plastic-coated fabric

  8. 8. B. strength