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Jellies are very weak materials. You wouldn't build a house with them!

Materials - Weak And Strong

Explore how strong and weak materials behave as you test which objects bend, break, or hold weight in this KS1 Science quiz.

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Fascinating Fact:

Strong wood makes tables, doors, and chairs that can hold people and books without snapping.

In KS1 Science, children explore how some materials are strong and others are weak. By pushing, pulling, and loading objects, they discover which materials are safe for everyday jobs.

Key Terms

Strong: A material that does not break or bend easily when a force is used.
Weak: A material that can snap, tear, or squash easily with only a small force.
Force: A push or a pull that can make something move, bend, or break.

Frequently Asked Questions (Click to see answers)

How do you test if a material is strong in KS1 science?

To test strength, children gently bend, stretch, or put weight on a material and watch what happens. If it keeps its shape and does not break, it is strong.

Why do we use strong materials for tables and chairs?

We use strong materials for tables and chairs so they can safely hold people, books, and equipment without wobbling, bending, or breaking during everyday use.

What everyday objects help children see weak materials in action?

Paper towels tearing when wet, thin plastic bags stretching, or flimsy cardboard bending show weak materials that cannot hold heavy loads for long.

Try These Related Quizzes

1 .

Which of these can you cut with scissors?

Card

Stone

Steel

Wood

What do you like making at school?

2 .

Ellie is eating ice-cream out of a glass dish. She accidentally knocks the glass dish off the table and onto the floor. What will happen?

The glass dish will bounce

The glass dish will bend

The glass dish will break

The glass dish will catch fire

If you do break a glass, always ask an adult to see to it

3 .

This is the British Museum in London. Many buildings are made of stone. Stone is cut from rock. Rock is a _____ material.

Strong

Weak

Flexible

Runny

Stone is cut from rock in quarries

4 .

Holly goes to the playground. She climbs up onto the bars. The bars must be strong to hold Holly. The bars are made from _____.

Plastic

Steel

Rubber

Wax

Do you like swinging from the bars at the playground?

5 .

Wood is a strong material. But it can be cut. What do we use to cut wood?

A hammer

A screwdriver

A saw

A pair of scissors

Be careful - saws are sharp. Saws can be very dangerous

6 .

It is Mark’s birthday. He is having a party. He is given a birthday card. There is a birthday cake with icing on it. There are candles on the cake. Afterwards, they all eat jelly. All these materials are weak. But which one of these materials is the weakest?

Candle wax

Cake with icing

Birthday card

Jelly

Do you like to eat jelly?

7 .

String is very bendy and flexible. But if you pull on string it is very hard to pull apart. You need scissors to cut string. This is because string is:

A very strong material

Quite a strong material

An elastic material

A hard material

It is very hard to stretch string. But you can stretch a rubber band by pulling on it. Rubber bands are elastic

8 .

The lead in a pencil breaks quite easily. The lead in a pencil is weak. Some people try to break the pencil itself. But it is hard to break pencils. This shows that: