Stretchy materials | Science | Quizalize & Oak National Academy

Starter quiz

Why is wood a good material to make a chair?
- Wood comes from trees.
- Wood can be strong and made smooth. ✓
- Wood can be made into spoons and tables.
Which of these is a property of materials?
- absorbent ✓
- water
- sponge
True or false? Materials that are absorbent do not soak up any liquids.
- True
- False ✓
Which of these statements is true?
- No materials are absorbent.
- Some materials are absorbent. ✓
- All materials are absorbent.
What do scientists do when they investigate?
- They send emails to other scientists.
- They wear a white coat.
- They try to find out what happens. ✓
What do scientists need to investigate if materials are absorbent?
- materials and a torch
- materials and scissors
- materials and water ✓
- materials and a ruler

Exit quiz

Which material is suitable for making a jumper?
- wool ✓
- wood
- metal
Which of these is a property of materials?
- a jumper
- fabric
- stretchy ✓
If something is stretchy ...
- it can be made longer or wider without breaking. ✓
- it absorbs water.
- it does not let light through.
Which of these statements is true?
- No materials are stretchy.
- Some materials are stretchy. ✓
- All materials are stretchy.
How could scientists test materials to find out if they are stretchy?
- They could pour water on them.
- They could shine a torch on them.
- They could pull them and measure them to see if they get longer. ✓
Which of these fabrics is stretchy?
- jersey ✓
- denim
- linen

Worksheet

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Presentation

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Lesson Details

Key learning points

The properties of materials make them suitable or unsuitable for particular uses.
Being stretchy can be a property of some materials.
If a material is stretchy, it is able to be stretched or pulled to change its shape.
Some materials are stretchy and this makes them suitable for certain uses.
Scientists test materials to find out which are stretchy and which are not.

Common misconception

Children might not think that when you stretch some materials, they go back to the shape they were (and some snap).

Examples of different materials, some that stretch and return to their previous length, some that stretch and do not return to their previous length, and some materials that do not stretch and may snap if stretched.

Keywords

Material - A material is what an object is made from. An object can be made from more than one material.
Property - The describing words we use for a material are called its properties.
Suitable - Someone or something that is suitable for a particular purpose or occasion is right or acceptable for it.
Stretchy - Something that is stretchy is able to stretch or be stretched.
Length - The length of something is its measurement from end to end.