Transparent and opaque materials: plan and do | Science

Starter quiz

Waterproof materials are useful because ...
- they keep us warm.
- they keep us cool.
- they keep us dry. ✓
True or false? Materials can be made waterproof by adding an extra waterproof covering.
- True ✓
- False
What did Charles Macintosh invent?
- a waterproof material ✓
- a soft material
- an umbrella
Scientists today investigate waterproof materials. What does this mean?
- they make waterproof coats
- they find out more about waterproof materials ✓
- they invent waterproof boots
Which part of an investigation does this table show?
- the plan
- the prediction
- the results ✓
Which of these materials are waterproof?
- wool
- plastic ✓
- denim
- foil ✓

Materials that let light through are called ...
- smooth.
- transparent. ✓
- opaque.
Which of these objects is made from a transparent material?
- a glass ✓
- a wooden fence
- a brick wall
Materials that are opaque ...
- do not let water through.
- do not let light through. ✓
- do not stretch.
Which of these objects is made from an opaque material?
- a wooden pencil ✓
- a glass jug
- a plastic bottle
Andeep is recording the results of his investigation in a ...
- 'table' ✓
Lucas wants to test some materials to see if they are opaque. What should he use?
- a calculator
- a torch ✓
- a jug of water

Some materials let all light pass through, these are called transparent materials and you can see through them clearly.
Some materials do not let light through, these are called opaque materials.
Scientists plan and carry out simple tests to find out which materials are transparent and opaque.
The results of an investigation can be recorded in a simple table.

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

Opportunities to test each material to check if their thinking was correct.

Materials - A material is what an object is made from. An object can be made from more than one material.
Light - We can detect light with our eyes in order to see things.
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.