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

Materials - Weak And Strong

This Science quiz is called 'Materials - Weak And Strong' and it has been written by teachers to help you if you are studying the subject at elementary school. Playing educational quizzes is an enjoyable way to learn if you are in the 3rd, 4th or 5th grade - aged 8 to 11.

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You know that some materials are hard and others are soft. Some break easily but others do not. Some materials are weak and some are strong. Wool is soft, but if you pull it, it is quite strong. A glass vase is solid. It is hard to the touch. But it can break easily - it is weak if it is dropped. Here are ten questions about the strength of materials. Can you get full marks?

Click on the pictures for a closer look.

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:

Pencil lead is quite strong

Pencil lead is very strong

Wood is quite strong

Wood is weak

Wood is surprisingly strong

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

Spoons go through ice cream easily. This is because ice cream is a ____ material.

Solid

Strong

Weak

Transparent

Which flavor of ice cream do you like best?

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?

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

Which of these can you cut with scissors?

Card

Stone

Steel

Wood

What do you like making at school?

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

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

Trains run on tracks. The tracks are made of steel. This is because steel is very ______.

Long

Strong

Weak

Elastic

Never go near railroad lines

10.

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?