1. Matter is anything that:
A) Has color only
B) Has mass and occupies space
C) Produces light
D) Can only be seen
2. Which of the following is a state of matter?
A) Solid
B) Energy
C) Force
D) Heat
3. The particles in a gas are:
A) Closely packed and fixed
B) Slightly movable
C) Arranged in layers
D) Far apart and move freely
4. Which state of matter has a definite shape and definite volume?
A) Gas
B) Plasma
C) Solid
D) Liquid
5. Which state of matter has a definite volume but no definite shape?
A) Solid
B) Liquid
C) Gas
D) Plasma
6. Melting of ice is an example of:
A) Physical change
B) Chemical change
C) Nuclear change
D) Biological change
7. Rusting of iron is a:
A) Physical property
B) Physical change
C) Reversible process
D) Chemical change
8. Which of the following is a physical property?
A) Flammability
B) Reactivity
C) Density
D) Corrosiveness
9. Which of the following is a chemical property?
A) Boiling point
B) Ability to burn
C) Color
D) Melting point
10. The process by which a liquid changes into a gas is called:
A) Evaporation
B) Condensation
C) Freezing
D) Sublimation
11. Condensation is the conversion of:
A) Solid into liquid
B) Solid into gas
C) Liquid into solid
D) Gas into liquid
12. Which state of matter is highly compressible?
A) Solid
B) Liquid
C) Gas
D) Ice
13. The smallest particles of matter are in constant:
A) Motion
B) Rest
C) Expansion only
D) Cooling
14. Which of the following is an example of a pure substance?
A) Air
B) Distilled water
C) Milk
D) Soil
15. A mixture can generally be separated by:
A) Nuclear reactions
B) Chemical decomposition only
C) Burning
D) Physical methods
16. Which process changes a solid directly into a gas?
A) Melting
B) Freezing
C) Sublimation
D) Condensation
17. Water exists naturally on Earth in:
A) One state only
B) Solid, liquid, and gaseous states
C) Solid state only
D) Liquid state only
18. Which of the following is a heterogeneous mixture?
A) Sand and water
B) Salt solution
C) Air
D) Vinegar
19. A homogeneous mixture has:
A) Visible layers
B) Uneven composition
C) Uniform composition throughout
D) Only solid particles
20. Which of the following is an example of a chemical change?
A) Breaking glass
B) Burning paper
C) Melting wax
D) Boiling water
21. The SI unit of mass is:
A) Gram
B) Pound
C) Tonne
D) Kilogram
22. Which property can be observed without changing the identity of a substance?
A) Physical property
B) Chemical property
C) Radioactive property
D) Nuclear property
23. Ice, water, and steam are different forms of:
A) Different compounds
B) Different elements
C) The same substance in different states
D) Different mixtures
24. Which process converts a gas directly into a solid?
A) Evaporation
B) Deposition
C) Melting
D) Boiling
25. Which statement about particles in liquids is correct?
A) They can move past one another
B) They are fixed in position
C) They have no attraction
D) They cannot flow
26. Air is classified as a:
A) Compound
B) Element
C) Pure substance
D) Homogeneous mixture
27. Which of the following is NOT a physical change?
A) Crushing sugar
B) Cooking an egg
C) Freezing water
D) Dissolving salt in water
28. During evaporation, particles:
A) Lose all energy
B) Become solids
C) Gain enough energy to escape from the liquid surface
D) Stop moving
29. Which of the following is a characteristic of solids?
A) Fixed shape and fixed volume
B) No fixed volume
C) Easily compressed
D) Fill the entire container
30. Which separation technique is commonly used to remove insoluble solids from liquids?
A) Distillation
B) Chromatography
C) Sublimation
D) Filtration
31. The boiling point of a substance is a:
A) Chemical property
B) Physical property
C) Biological property
D) Nuclear property
32. Which of the following consists of only one kind of particle?
A) Pure substance
B) Heterogeneous mixture
C) Solution
D) Colloid
33. Which process changes a liquid into a solid?
A) Condensation
B) Sublimation
C) Freezing
D) Evaporation
34. Which statement about gases is correct?
A) They have fixed shape
B) They have fixed volume
C) Their particles cannot move freely
D) They expand to fill the entire container
35. Which of the following is an example of a homogeneous mixture?
A) Sugar dissolved in water
B) Oil and water
C) Sand and iron filings
D) Soil
36. Which of the following is an example of a physical change?
A) Burning coal
B) Rusting of iron
C) Cutting a piece of paper
D) Digestion of food
37. Which property is commonly used to identify a pure substance?
A) Shape
B) Size
C) Color only
D) Melting point
38. Which state of matter has particles that vibrate about fixed positions?
A) Gas
B) Solid
C) Liquid
D) Plasma
39. The change of water vapor into liquid water is called:
A) Condensation
B) Evaporation
C) Sublimation
D) Fusion
40. Which of the following is NOT a characteristic of liquids?
A) They have definite volume
B) They can flow
C) They have definite shape
D) They take the shape of their container
41. A substance that cannot be broken down into simpler substances by chemical means is called an:
A) Mixture
B) Compound
C) Solution
D) Element
42. Which of the following indicates that a chemical change has occurred?
A) Change in shape only
B) Formation of a new substance
C) Change in size only
D) Change in volume only
43. During melting, a substance changes from:
A) Solid to liquid
B) Liquid to gas
C) Gas to solid
D) Gas to liquid
44. Which method is commonly used to separate salt from seawater?
A) Filtration
B) Sieving
C) Magnetic separation
D) Evaporation
45. Which statement is true about gases?
A) They have fixed shape and volume
B) They cannot be compressed
C) Their particles move rapidly in all directions
D) Their particles are tightly packed
46. Which of the following is a mixture?
A) Air
B) Oxygen
C) Copper
D) Distilled water
47. The particles of matter attract one another because of:
A) Gravity only
B) Intermolecular forces
C) Electricity only
D) Magnetism only
48. Which state of matter has neither fixed shape nor fixed volume?
A) Solid
B) Liquid
C) Ice
D) Gas
49. Which of the following can be reversed easily?
A) Burning wood
B) Rusting iron
C) Freezing water into ice
D) Cooking food
50. The main objective of Chapter 2 “Matter” is to help students understand:
A) The properties, classification, states, and physical and chemical changes of matter
B) Only atomic structure
C) Only the periodic table
D) Only laboratory apparatus