Sorting Materials into Groups Test

Result

Sorting Materials into Groups Test - 7

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Weekly Quiz Competition

Question 1
1 / -0

Cart, wheels and plough these materials are made up of :

A
wood

B
plastic

C
metal

D
None of these

Solution

Cart (Bullock-cart), wheels and plough are made of wood.
Carts are the vehicles designed for transportation of goods to small distances; using two wheels which are also made of wood and normally pulled by one or a pair of animals, or handcarts are also there which are pulled or pushed by humans.
Wheels can be made of wood as well as metals.
Plough which is used in farming to dig soil is also made of wood, nowadays its made up of metal.

Hence the option $$A$$ is correct.
Question 2
1 / -0

Ayesha saw that the first puri ____________ to the bottom of the pan; as it puffed up, it started ____________ on the oil.

A
float, to sank

B
sank, floating

C
reached, floating

D
None of these

Solution

At first, the density of puri is higher than oil so it sinks, and then after puri gets filled with air(the air is lighter than oil) which makes it float in the oil.
Question 3
1 / -0

Translucent substance __________.

A
allows light to pass through it completely

B
allows light to pass through it partially

C
does not allow the light to pass through it

D
None of these

Solution

Those materials that allow some light to pass through them are called translucent materials. Examples include frosted glass and wax paper.
Question 4
1 / -0

The ______ sinks in water while the _______ floats.

A
ship, boat

B
paper, paper boat

C
soap cake, soap case

D
nail, hammer
Solution
Soap cake being heavier than water, sinks, while soap case being lighter than water, floats.

Of the other options:
Objects that float: ship, boat
Objects that sink: paper and paper boat after soaking water, nail, hammer
Question 5
1 / -0

What is transparent material?

A
The material which does not allow light to pass through it.

B
The material which allows light to pass through it.

C
The material through which light can pass partially.

D
None of these

Solution

Material which allows light to completely pass through it without getting scattered is called transparent material.
Example: clear glass

Material that does not allow light to pass through it is called opaque. Those that allow light to pass only partially are called translucent.
Question 6
1 / -0

Which of the following substances is not transparent?

A
Glass

B
Pure water

C
Air

D
Steel

Solution

Materials that allow light to completely pass through them are called transparent materials. For example, glass, pure water and air.

Metals like steel on the other hand do not allow light to pass through them. So, they are opaque materials.
Question 7
1 / -0

How many of the following are soluble in water?
salt, sugar, sand, dust

A
1

B
2

C
3

D
4

Solution

Salt and sugar are soluble in water and hence can form a homogeneous solution.
Sand and dust are insoluble in water.
Option $$B$$ is correct.
Question 8
1 / -0

Which of the following objects are generally made from leather?

A
Bags

B
Shoes

C
Belts

D
All of the above

Solution

Leather is used to make many objects like bags, shoes, and belts. It is a sturdy material.
Question 9
1 / -0

Most rubber bands and tyres are made of rubber. This is because rubber is:

A
naturally available

B
cheap

C
an electrical insulator

D
elastic and strong
Solution
Natural rubber is a naturally available polymer. It is used to prepare rubber bands and tyres because rubber is
Elastic; because of this property a rubber band can be stretched to 9 or 10 times its original length and when the force is removed it regains its original length.
It is strong and tough. Because of this property, it can be put to use even under abnormal conditions. And is therefore used to make tyres.
Question 10
1 / -0

A few substances are arranged in order of increasing force of attraction between their particles. Which one of the following represents a correct arrangement?

A
Milk, Sugar, Air

B
Air, Sugar, Milk

C
Sugar, Milk, Air

D
Air, Milk, Sugar

Solution

Forces of attraction increase in the order:
Gas $$<$$ Liquid $$<$$ Solid

Air $$<$$ Milk $$<$$ Sugar
$$\downarrow$$
Gas $$<$$ Liquid $$<$$ Solid

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Re-Attempt Weekly Quiz Competition

Sorting Materials into Groups Test - 7

Result

Sorting Materials into Groups Test - 7

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SHARING IS CARING

Question 1

wood

plastic

metal

None of these

Solution

Question 2

float, to sank

sank, floating

reached, floating

None of these

Solution

Question 3

allows light to pass through it completely

allows light to pass through it partially

does not allow the light to pass through it

None of these

Solution

Question 4

ship, boat

paper, paper boat

soap cake, soap case

nail, hammer

Solution

Question 5

The material which does not allow light to pass through it.

The material which allows light to pass through it.

The material through which light can pass partially.

None of these

Solution

Question 6

Glass

Pure water

Air

Steel

Solution

Question 7

1

2

3

4

Solution

Question 8

Bags

Shoes

Belts

All of the above

Solution

Question 9

naturally available

cheap

an electrical insulator

elastic and strong

Solution

Question 10

Milk, Sugar, Air

Air, Sugar, Milk

Sugar, Milk, Air

Air, Milk, Sugar

Solution

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