Clay can be moulded into different shapes, like these colourful men!

# Forces - Changing Shape

This quiz addresses the requirements of the National Curriculum KS1 Science for children aged 5 and 6 in years 1 and 2. Specifically this quiz is aimed at the section dealing with forces and how they change the shape of materials.

What happens when you apply force to an object? You already know that some materials can change shape but bounce back again - springs, rubber bands and balloons. But other materials stay in their new shape. If you push or pull on dough or modelling clay and change its shape, what happens? It stays in the new shape. You can use force to mould dough and clay. It is good fun. It is also good science.

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1. These puppets are made from modelling clay. This shows that modelling clay can be ______.
What is the best thing you have ever made with modelling clay?
2. The picture is of a blacksmith making a horse-shoe. The blacksmith makes the horse-shoe from steel.

It is very difficult to change the shape of the steel. The blacksmith has to heat the steel so it is red hot and then hit it with a hammer. This is because steel is a ____ material.
What shape is a horse-shoe?
3. This man is making bread. He is working the dough. He pushes and pulls the dough. Every time he does this the dough:
4. Mike pulls on a rubber band. It stretches and gets longer. What happens when Mike stops pulling?
Rubber bands are elastic. They can go back to their original shape and size
5. Alice is rolling pastry. When Alice has rolled the pastry, the pastry is _______.
Do you like rolling pastry?
6. The man is squashing an empty drinks can. The can changes shape. The can:
This change in shape is permanent
7. Ben pushes down on the play dough. What happens?
What can you make with modelling clay?
8. Beatrice sits down on a bean bag. The bean bag:
Do you have a bean bag in your house?
9. Thin metal can change shape if you push hard enough.

This car has had a bump. Another car bumped into it. The car has a dent. It has changed _____.
It is very hard to repair the dent. It is hard to put it back to the original shape
10. Susan makes pottery. She mixes clay and water. She ______ the clay on a potter’s wheel.
The clay can be shaped. The clay is moulded. The clay stays in its new shape

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