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Transparent and opaque materials: review

Lesson details

Learning outcome

I can name transparent and opaque materials and talk about how they are useful.

Key learning points

  1. The results of an investigation can tell us which materials are transparent and opaque.
  2. Materials can be sorted into transparent and opaque.
  3. Scientists think about how transparent and opaque materials can be useful to us.

Keywords

  • Material - A material is what an object is made from. An object can be made from more than one material.

  • Transparent - Transparent materials are completely see-through.

  • Opaque - Light cannot pass through objects that are opaque.

  • Results - The result of a test or enquiry is what happened or what was found out.

Common misconception

In comparing the extent of a given property in two materials children may rely purely on observation rather than on active testing.

Ensure children have been able to test materials and generate a set of results.

Teacher tip

Ensure that children have had opportunity to test materials prior to this lesson (see lesson 8 of this unit) so that they have developed an understanding of materials that are transparent and opaque.

Equipment

Results from their own tests from lesson 8 prior to this.

Content guidance

Exploration of objects

Supervision

Adult supervision recommended

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.
Transparent materials ...

let water through.
Correct answer: let light through.
do not bend.

Q2.
Which of these photographs shows a transparent material?

a metal coin
denim fabric
Correct answer: a plastic bottle

Q3.
Materials that do not let light through are called ...

An image in a quiz
Correct answer: opaque.
transparent.
bumpy.

Q4.
Which of these photographs shows an opaque material?

a glass
Correct answer: a piece of foil
a plastic bottle

Q5.
Izzy has recorded these results in ...

An image in a quiz
a test.
a desk.
Correct answer: a table.

Q6.
What equipment could Laura use to investigate opaque and transparent materials?

a ruler and a book
a jug and a spoon
Correct answer: a torch and a window

6 Questions

Q1.
Which of these materials is transparent?

Correct answer: glass
wood
metal

Q2.
Which of these materials is opaque?

food wrap
Correct answer: denim fabric
glass jar with water

Q3.
When we put materials into groups of transparent and opaque, which science skill are we using?

An image in a quiz
talking
measuring
Correct answer: sorting

Q4.
Transparent materials are useful for making ...

a curtain.
Correct answer: a light bulb.
a book.

Q5.
Opaque materials are useful for making ...

a window.
a pair of glasses.
Correct answer: a garden fence.

Q6.
What do these results tell us?

An image in a quiz
which materials are waterproof and not waterproof
Correct answer: which materials are transparent and opaque
which materials are rough and smooth

To help you plan your 1 science lesson on: Transparent and opaque materials: review, download all teaching resources for free and adapt to suit your pupils' needs...