What is matter?

A) Anything that takes up space and has mass

B) Only solid objects
C) Anything that can be seen
D) Only living things

Answer: A) Anything that takes up space and has mass

2. Which of the following is an example of a solid?

A) Water
B) Air
C) Ice
D) Steam

Answer: C) Ice

3) Which state of matter has a definite shape and volume?

A) Liquid
B) Gas
C) Solid
D) None of the above

Answer: C) Solid

4) What is the main difference between a liquid and a gas?

A) Liquids have a fixed shape, while gases do not

B) Liquids flow, but gases do not
C) Liquids have a fixed volume, but gases do not
D) Gases take up more space than liquids

Answer: C) Liquids have a fixed volume, but gases do not

5)Which of the following is an example of a gas?

A) Water
B) Steam
C) Metal
D) Wood

Answer: B) Steam

6. Which of these is a property of solids?

A) They flow easily

B) They have a fixed shape and volume
C) They expand to fill their container
D) They can be compressed easily

Answer: B) They have a fixed shape and volume

7. What happens to the particles in a gas?

A) They are tightly packed and can only vibrate

B) They are far apart and move freely
C) They are packed closely together
D) They do not move

Answer: B) They are far apart and move freely

8. Which of the following can change from a solid to a liquid?

A) Ice
B) Water
C) Steam
D) Air

Answer: A) Ice

9)The process by which a liquid turns into a gas is called:

A) Condensation
B) Freezing
C) Melting
D) Evaporation

Answer: D) Evaporation

10) Which of the following substances is a liquid at room temperature?

A) Oxygen
B) Water
C) Iron
D) Sand

Answer: B) Water

11) What is the state of matter of a substance that can flow and takes the shape of its container?

A) Solid
B) Liquid
C) Gas
D) None of the above

Answer: B) Liquid

12. Which state of matter has the least amount of particle movement?

A) Solid
B) Liquid
C) Gas
D) All have the same amount of movement

Answer: A) Solid
13. Which of the following is NOT a characteristic of a gas?

A) It has a fixed volume

B) It expands to fill its container
C) It has no fixed shape
D) Its particles are spread out

Answer: A) It has a fixed volume

14. What is the process called when a solid changes directly into a gas?

A) Melting
B) Freezing
C) Sublimation
D) Evaporation

Answer: C) Sublimation

15. Which of these substances is a solid at room temperature?

A) Oxygen
B) Water
C) Salt
D) Mercury

Answer: C) Salt

16) What happens when you heat a solid?

A) It changes into a gas

B) It changes into a liquid
C) It gets lighter
D) It remains the same

Answer: B) It changes into a liquid

17) Which of the following changes is a physical change?

A) Burning paper
B) Rusting of iron
C) Melting ice
D) Cooking an egg

Answer: C) Melting ice

18. Which of the following is NOT a property of gases?

A) Gases have no definite shape

B) Gases have no definite volume
C) Gases can be compressed
D) Gases are made of particles that move freely

Answer: B) Gases have no definite volume

19) 4. In which of the following processes does a liquid turn into a gas?
A) Condensation
B) Freezing
C) Evaporation
D) Melting

Answer: C) Evaporation

20) Which of the following changes occurs when a liquid changes into a solid?

A) Freezing
B) Boiling
C) Melting
D) Evaporation

Answer: A) Freezing

21) If the temperature of a gas is increased at constant volume, what happens to the pressure of
the gas?

A) The pressure decreases

B) The pressure increases
C) The pressure remains the same
D) The pressure fluctuates

Answer: B) The pressure increases

22) Which of these has the highest density?

A) Air
B) Water
C) Ice
D) Oil

Answer: B) Water

23) What is the process called when a gas turns into a liquid?

A) Freezing
B) Condensation
C) Sublimation
D) Evaporation

Answer: B) Condensation

24) Which state of matter can be compressed the most?

A) Solid
B) Liquid
C) Gas
D) Plasma

Answer: C) Gas

25) When a solid changes directly into a gas without becoming a liquid first, this is called:
A) Sublimation
B) Freezing
C) Evaporation
D) Condensation

Answer: A) Sublimation

26. Which of the following examples shows a change from gas to liquid?

A) Water boiling
B) Water vapor cooling into droplets
C) Ice melting
D) Steam rising

Answer: B) Water vapor cooling into droplets

27) The particles in a solid:

A) Are far apart and move quickly

B) Are close together and vibrate in place
C) Are far apart and move slowly
D) Are arranged randomly and can move freely

Answer: B) Are close together and vibrate in place

28) The process of a liquid turning into a gas is called:

A) Melting
B) Freezing
C) Evaporation
D) Sublimation

Answer: C) Evaporation

29) What do you call a substance that can exist in all three states of matter (solid, liquid, gas)?

A) Compound
B) Element
C) Mixture
D) Substance

Answer: B) Element

30) Which of the following is a characteristic of a liquid?

A) It has a definite shape but no definite volume

B) It can flow and take the shape of its container
C) Its particles are tightly packed in fixed positions
D) It can be easily compressed

Answer: B) It can flow and take the shape of its container

31) Which of the following is true about the particles in a gas?

A) They are tightly packed together and cannot move

B) They move freely and are spread out
C) They are arranged in a regular pattern
D) They only vibrate and do not move

Answer: B) They move freely and are spread out

32) 7. When water is heated from 0°C to 100°C, what changes occur?

A) The water changes from a liquid to a gas

B) The water changes from a gas to a liquid
C) The water changes from a solid to a liquid
D) The water remains the same

Answer: A) The water changes from a liquid to a gas

33). Which of the following is an example of a reversible change in matter?

A) Burning of wood
B) Iron rusting
C) Water freezing
D) Baking a cake

Answer: C) Water freezing

34. What is the name of the process where a solid absorbs heat and changes into a liquid?

A) Freezing
B) Melting
C) Evaporation
D) Sublimation

Answer: B) Melting

35)Which of the following is true about gases compared to solids and liquids?

A) Gases have a fixed volume and shape

B) Gases have a fixed volume but change shape
C) Gases have neither a fixed volume nor a fixed shape
D) Gases cannot expand to fill a container

Answer: C) Gases have neither a fixed volume nor a fixed shape

TRUE FALSE

36)Matter is anything that has mass and occupies space.

Answer: True

37) Gases have a fixed shape and volume.

Answer: False (Gases have neither a fixed shape nor a fixed volume.)

38) Solids have a fixed volume but no fixed shape.

Answer: False (Solids have both a fixed volume and a fixed shape.)
.39)A liquid takes the shape of its container but has a fixed volume.

Answer: True

40) Water can exist in all three states of matter: solid, liquid, and gas.

Answer: True

41). The particles in a gas are packed closely together and vibrate in place.

Answer: False (The particles in a gas are far apart and move freely.)

42) Melting is the process of a solid changing into a liquid.

Answer: True

43) When ice is heated, it changes directly into a gas.

Answer: False (Ice melts into water before it changes into gas.)

44) When a gas is cooled, it can condense into a liquid.

Answer: True

45) Gases are easily compressed because their particles are spread far apart.

Answer: True

46) Sublimation is the process where a liquid turns into a solid.

Answer: False (Sublimation is the process where a solid changes directly into a gas.)

47) A solid can change into a liquid by freezing.

Answer: False (A solid changes into a liquid by melting.)

The process of liquid turning into gas is called condensation.

Answer: False (Condensation is the process where a gas turns into a liquid.)

48 Freezing is the process where a liquid turns into a solid.

Answer: True
49. Liquids have no definite volume but take the shape of their container.

Answer: False (Liquids have a definite volume but take the shape of their container.)

50. Matter can exist in only two states: solid and liquid.

Answer: False (Matter can exist in three states: solid, liquid, and gas.)

51. Particles in a solid are closely packed and vibrate in place.

Answer: True

52 When water evaporates, it changes from a liquid to a solid.

Answer: False (Evaporation is when water changes from liquid to gas.)

53 Heat causes solids to expand and liquids to contract.

Answer: False (Heat causes solids to expand and liquids to expand as well, but gases tend to expand
more than liquids.)

54. The particles in a liquid are more spread out than in a solid.

Answer: True

55)The particles in a solid move freely and are spread far apart.

Answer: False (The particles in a solid are closely packed and only vibrate in place.)

56) Gas molecules have both a fixed shape and volume.

Answer: False (Gas molecules have neither a fixed shape nor a fixed volume. They expand to fill the
container.)

57)The process of condensation is the change of a gas into a liquid.

Answer: True

58) A solid cannot be compressed because the particles are tightly packed.

Answer: True

59 When a substance undergoes a physical change, its chemical composition also changes.

Answer: False (A physical change does not alter the chemical composition of a substance.)

60) When the temperature of a gas increases at constant pressure, its volume increases.
Answer: True (This is an example of Charles' Law, where the volume of a gas increases as its
temperature increases, if pressure is constant.)

61)When a solid is heated, it can directly turn into a gas without passing through the liquid state.
This process is called condensation.

Answer: False (This process is called sublimation, not condensation. Condensation is when a gas
turns into a liquid.)

62)The process of evaporation occurs only at the surface of a liquid.

Answer: True

63)Liquids are more easily compressible than gases.

Answer: False (Liquids are much less compressible than gases because the particles in a liquid are
closer together.)

64) A substance that is a gas at room temperature will always remain a gas at lower temperatures.

Answer: False (Gases can turn into liquids or solids when the temperature is lowered below their
boiling or freezing points.)

65)In a liquid, the particles are spread far apart but can still move around each other.

Answer: True

66)Water vapor is an example of a gas at room temperature, but it is still water.

Answer: True (Water vapor is the gaseous state of water.)

67)The volume of a gas decreases when the pressure increases, provided the temperature is
constant.

Answer: True (This is an example of Boyle's Law, where the pressure and volume of a gas are
inversely related at constant temperature.)

68) The freezing point of water is the same as its melting point, which is 0°C.

Answer: True

69)When a liquid changes into a gas, the particles lose energy and move closer together.

Answer: False (When a liquid changes into a gas, the particles gain energy and move farther apart.)

70) Sublimation is the process where a gas turns directly into a solid.

Answer: False (Sublimation is when a solid changes directly into a gas, not the other way around.)
70. If a gas is compressed in a fixed container, its temperature will increase.

Answer: True (Compressing a gas increases its temperature due to the increase in particle collisions,
which releases heat.)

71) The volume of a liquid changes significantly with temperature.

Answer: False (Liquids expand and contract with temperature changes, but their volume changes
much less than gases.)

72 Air is a mixture of gases, including oxygen, nitrogen, and carbon dioxide.

Answer: True

73) When a substance changes from one state of matter to another, the mass of the substance also
changes.

Answer: False (The mass of the substance remains the same during a change of state. Only the form
or energy of the substance changes.)

Fill in the blanks

74)The particles in a _______ are closely packed together and only vibrate in place.

 Answer: solid

75)When a gas is cooled, it can change into a _______ through the process of condensation.

 Answer: liquid

76)The process where a solid changes directly into a gas is called _______.

 Answer: sublimation

77) In a _______ state, the particles are spread far apart and move freely, allowing it to fill any
container.

 Answer: gas

78)When a liquid turns into a solid, the process is called _______.

 Answer: freezing

79) A _______ is a substance that does not have a fixed shape but has a definite volume.

 Answer: liquid

80) The amount of space that matter occupies is called its _______.

 Answer: volume
81)he process by which a liquid changes into a gas is called _______.

 Answer: evaporation

82)When you heat a solid, the particles gain _______ and begin to move faster.

 Answer: energy

83)The particles in a _______ are arranged in a regular pattern and have a fixed shape and volume.

 Answer: solid

84)As the temperature of a gas increases, the volume of the gas _______ (increases/decreases) at
constant pressure.

 Answer: increases

85)The process of a gas turning into a liquid is called _______.

 Answer: condensation

86) In a _______ state, the particles are close together but can move past one another, allowing
the substance to flow.

 Answer: liquid

87). When a substance changes from one state of matter to another, the _______ remains the
same, but the form of the substance changes.

 Answer: mass

88) The process by which a solid turns into a liquid is called _______.

 Answer: melting

89) The phenomenon where the volume of a gas decreases when pressure is applied at constant
temperature is explained by _______ law.

 Answer: Boyle’s

90)The particles of a _______ have the most energy, allowing them to move freely and expand.

 Answer: gas

91. Water can exist in three states: solid (ice), liquid (water), and _______ (water vapor).

 Answer: gas
92)In a liquid, the particles are _______ (closely packed/spread apart) compared to a gas.

 Answer: closely packed

93. The process of heating a liquid to its boiling point and changing it into a gas is called _______.

 Answer: boiling

1. The particles in a _______ are closely packed together and only vibrate in place.

 Answer: solid

2. When a gas is cooled, it can change into a _______ through the process of condensation.

 Answer: liquid

3. The process where a solid changes directly into a gas is called _______.

 Answer: sublimation

4. In a _______ state, the particles are spread far apart and move freely, allowing it to fill any
container.

 Answer: gas

5. When a liquid turns into a solid, the process is called _______.

 Answer: freezing

6. A _______ is a substance that does not have a fixed shape but has a definite volume.

 Answer: liquid

7. The amount of space that matter occupies is called its _______.

 Answer: volume

8. The process by which a liquid changes into a gas is called _______.

 Answer: evaporation
9. When you heat a solid, the particles gain _______ and begin to move faster.

 Answer: energy

10. The particles in a _______ are arranged in a regular pattern and have a fixed shape and volume.

 Answer: solid

11. As the temperature of a gas increases, the volume of the gas _______ (increases/decreases) at
constant pressure.

 Answer: increases

12. The process of a gas turning into a liquid is called _______.

 Answer: condensation

13. In a _______ state, the particles are close together but can move past one another, allowing
the substance to flow.

 Answer: liquid

14. When a substance changes from one state of matter to another, the _______ remains the
same, but the form of the substance changes.

 Answer: mass

15. The process by which a solid turns into a liquid is called _______.

 Answer: melting

16. The phenomenon where the volume of a gas decreases when pressure is applied at constant
temperature is explained by _______ law.

 Answer: Boyle’s

17. In a liquid, the particles are _______ (closely packed/spread apart) compared to a gas.

 Answer: closely packed

18. The process of heating a liquid to its boiling point and changing it into a gas is called _______.
  Answer: boiling

19. The particles of a _______ have the most energy, allowing them to move freely and expand.

 Answer: gas

20. Water can exist in three states: solid (ice), liquid (water), and _______ (water vapor).

 Answer: gas