Changing shape: review | Science | Quizalize & Oak National Academy

Starter quiz

What do we do when we squash materials?
- Pull them to make them longer.
- Push on them to make them thinner and flatter. ✓
- Twist them lots of times.
Which of these photographs shows dough that has been bent?
- dough 1
- dough 2
- dough 3 ✓
True or false? When we twist something, we hold each end and turn it in opposite directions.
- True ✓
- False
When we stretch something, we pull it to make it ______.
- 'longer' ✓
Which of these materials can be stretched?
- rock
- paper
- rubber ✓
How do scientists test materials to see if they change shape?
- They try to squash, twist, stretch or bend them. ✓
- They drip water on them.
- They hold them up to the light.

Which of these are ways of changing the shape of materials?
- squashing ✓
- wood
- plastic
- bending ✓
Which of these materials has been bent?
- material 1
- material 2 ✓
- material 3
How can we find out which materials can change shape?
- by testing them ✓
- by measuring them
- by sorting them
Which of these shows a material whose shape cannot be changed by squashing, bending, twisting or stretching?
- dough
- rock ✓
- paper
What happens when a material changes shape?
- It always stays in the shape it has changed to.
- It can sometimes go back to its original shape. ✓
Which of these materials go back to their original shape after they have been stretched?
- elastic ✓
- thin rubber ✓
- dough

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Squashing, bending, twisting and stretching are ways in which some shapes of objects can be changed.
The results of a test can show what happens when objects are squashed, bent, twisted and stretched.
Some objects are made from materials whose shape cannot be changed when squashed, bent, twisted or stretched.
Some materials do not change back to their original shape on their own after being squashed, bent, twisted or stretched.

Pupils may think that all objects that can be squashed, bent, twisted or stretched will return to their previous shape.

Opportunities to explore the impact of squashing, bending, twisting and stretching different materials.

Material - A material is what an object is made from. An object can be made from more than one material.
Change - If something is to change, it does not stay the same.
Shape - A shape is the outline or form of something.
Results - The results of a test are what happened or what was found out.
Original - When something is original, it is the first one.