Materials - Rough And Smooth
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Materials - Rough And Smooth

This Science quiz is called 'Materials - Rough And Smooth' 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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Have you ever tried running your hand over a brick wall? It is rough. But the glass in a mirror is really smooth. What is the difference between rough and smooth? Different materials feel very different. Some are soft to the touch. Others are hard and sharp - some are so sharp they could cut you. How materials feel is called their texture. Let’s find out a bit more about the texture of materials.

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1.
How a material feels is called its _______.
Strength
Bendiness
Texture
Warmth
A running track is quite rough, so the runner’s shoes can grip the track
2.
Most school playgrounds are made of tarmac or concrete. The surface of the playground is:
Soft
Hard
Warm
Bendy
Have you ever fallen and grazed your knee?
3.
This playground is covered in bark from trees. You still have to be careful, but the surface is:
Harder
Softer
Colder
Smoother
Which bit of your local playground do you like best?
4.
Most roads are made from tarmac. The road surface is:
Very smooth
Very bumpy
Quite rough
Quite weak
Roads are quite rough so that car tires can grip the road
5.
When the weather is very cold, there is snow and ice. When there is ice on the road, the road is:
Smoother
Rougher
Harder
Drier
The road is smooth and slippy. Big trucks spread grit on the road to melt the ice and give cars some grip
6.
This man is planing a piece of wood. The wood will be:
Harder
Softer
Rougher
Smoother
The man is a carpenter
7.
This man is polishing a car with a machine. The car will be:
Rougher and shinier
Harder and duller
Smoother and shinier
Softer and shinier
What is your favorite color of car?
8.
Wool is ____ to the touch.
Hard
Soft
Cold
Cool
A lot of carpets are made from wool
9.
This man is rubbing a piece of wood to make it smooth. He is rubbing the wood with sandpaper. The sandpaper is:
Smooth
Rough
Wet
Elastic
The rough sandpaper makes the wood smooth
10.
These are pebbles on a beach. The pebbles are:
Rough and weak
Rough and flexible
Smooth and hard
Smooth and soft
Pebbles are stones. They are made from rock. But they have been made smooth by the sea and the waves
Author:  David Bland

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