Need for classification

Q.

What Is Paragraph Style?

Q. Which among the following is not a reason for classifying materials?

1. Organize them better help us to locate them easily.
2. To study their properties.
3. It makes our search more random
4. To decide which material to choose for a specific purpose.

Q.

All objects are made up of only one material.True/False

1. False

2. True

Q. Upon heating, solids usually turn into

1. liquids.
2. gases.
3. vapours.
4. mixtures.

Q.

All objects can be differentiated based on their shapes.

1. True

2. False

Q.

Give a reason for the following.

Solids cannot be compressed easily.

Q.

What do you mean by classification?

Q. Water is denser than ice.
If this is true enter 1, if false enter 0.

Q.

Complete the following table:

State of matter	Characteristics properties	Reason
Solids	Fixed volume and shape
	Fixed volume but no fixed shape
		Particles are far apart from one another.
	Does not flow	Particles are held very strongly and cannot move from their fixed positions.
Gas	Can be compressed easily
Liquid	cannot fill a container completely

Q. Identify the arrangement that is sorted based on materials.​

Q. Chemists randomly arrange medicines for easy access.

1. True
2. False

Q.

Find the odd one out among the given combinations.

1. Ink and water.

2. Milk and water.

3. Oil and water.

4. Lime juice and water.

Q.

Why does a bulb burst, which has been glowing for a long time after a drop of cold water has fallen on it?

1. It is because glass conducts electricity.

2. It is because uneven cooling of the glass takes place.

3. It is because water freezes the bulb.

4. It is because glass conducts more heat.

Q.

Materials are classified as liquids if they have a specific shape.

1. True

2. False

Q. In departmental stores all brands of shampoos and soaps are kept together, while all pulses and kitchen items are kept under the same category. What is the reason behing this?

1. It is a rule.
2. To confuse the customer.
3. It is a sorting technique that helps the customer.
4. It looks better when arranged in that manner.

Q. Which of these states of matter cannot be compressed at all?

1. Liquids
2. Gases
3. Solids
4. Semi-solids

Q.

Differentiate between miscible and immiscible liquids?