Matter

Q.

What happens to the volume of a solution when sugar is dissolved in it?

1. Volume will increase.

2. Volume will decrease.

3. Volume will first increase and then decrease.

4. Volume will remain constant.

Q.

What are the characteristics of matter? What are the classifications of matter?

Q.

Which of the following is not matter?

1. Chalk

2. Car

3. Energy

4. Soil

Q.

In what ways are three states of matter different from each other?

Q.

Define matter. What are the characteristics of matter?

Q. _________ is a pure substance made up of only one kind of atom.

1. Molecule
2. Element
3. Mixture
4. Water

Q.

What is difference between matter and atom.

Q.

Classify the following as pure substances or mixtures.In the case of pure substances, classify whether they are elements or compounds but in the case of a mixture, identify whether they are homogeneous or heterogeneous.

air, milk, graphite, tap water, distilled water, brass, oxygen, steel, iron, diamond, sodium chloride, iodised table salt, silver.

Q. What are the three common states of matter? Which state of matter is rigid and why?

Q. A glass of water is taken. Half teaspoon of sugar is added to it and stirred. The sugar disappears, but the level of water in the glass does not rise. This means that the volume of water has not increased. The sugar particles are adjusted between the water molecules. This experiment shows that, water has _________________.

1. mass
2. intermolecular space
3. definite shape
4. fluidity

Q.

A piece of iron is heated until it becomes red-hot. It then becomes soft and is beaten to the desired shape. What kinds of changes are observed in this process-reversible or irreversible?

Q.

How Can Matter Be Classified At The Macroscopic Level?

Q. Which of the following is an element?

1. Sugar
2. Copper
3. Salt
4. Water

Q. State whether the following statements are true or false. If false, correct them.

Air does not occupy any space.

Q.

Physical substance which occupies space, has mass and can be felt by human senses are called as ________.

1. Matter

2. Thought

3. Cold

4. Smell

Q.

Which of the following are matter: (i) Paper (ii) Ink (iii) Thought (iv) Pen (v) Smell.

Q.

The particles of matter are in continuous and _____ motion.

Q. Which among the following substance is lustrous?

1. Plastic
2. Stone
3. Wood
4. Gold

Q. Which of the following substance will float in water?

1. Coin
2. Steel spoon
3. Plastic ball
4. Coloured pebbles

Q. When the oil is spread on paper then the objects on the other side:

1. appear more bright.
2. can't be seen.
3. can be seen clearly.
4. can be vaguely seen.

Q.

State whether the following statement is true or false.

Water is matter.

1. True
2. False

Q. Interconversion of water into different physical states is impossible.

1. True
2. False

Q.

Predict true or false:

Air, water, chair, table and smell are examples of matter.

1. True
2. False

Q.

7. Formation of curd from milk is a ________ change.

Q. are building blocks of molecules.

1. Mass and volume
2. Atoms
3. Air particles

Q. Chemically, matter can be classified as ___________.

1. pure and impure substances
2. elements, compounds and mixtures
3. solids, liquids and gases
4. metals and non-metals

Q.

What do you understand by a pure substance? Is milk a pure substance?

Q.

The statement given below is incorrect. Write the correct statement.

A pure substance is a homogeneous material that contains particles of two or more kinds.

Q. Everything in the universe is made up of material called as _______.

1. matter
2. None of the above
3. life
4. water

Q.

3. State whether the change can be reversed or not.

(b) The melting of ice candy.