MCQ questions for class 7 Science Chapter 6 Physical and Chemical Changes
Question 1: What is the change in which the state of matter remains the same?
Physical change
Chemical change
Biological change
Nuclear change
Question 2: Which of the following is an example of a physical change?
Burning of wood
Rusting of iron
Melting of ice
Digestion of food
Question 3: What is the term for a change that produces a new substance with different properties?
Physical change
Chemical change
Biological change
Nuclear change
Question 4: Which of the following is an example of a chemical change?
Freezing of water
Boiling of water
Burning of paper
Melting of wax
Question 5: What is the term for the smallest particle of an element that retains the properties of that element?
Molecule
Atom
Cell
Ion
Question 6: What is the term for the change of a substance from a liquid to a gas at its boiling point?
Melting
Freezing
Evaporation
Condensation
Question 7: Which of the following is an example of a physical change?
Cooking an egg
Burning of wood
Digestion of food
Rusting of iron
Question 8: What is the term for the change of a substance from a solid to a liquid at its melting point?
Evaporation
Freezing
Melting
Condensation
Question 9: Which of the following is a characteristic property of a substance?
Color
Volume
Shape
All of the above
Question 10: What is the term for the smallest particle of a compound that retains the properties of that compound?
Molecule
Atom
Cell
Ion
Question 11: Which of the following is an example of a chemical change?
Crushing a can
Breaking a glass
Cutting paper
Burning a candle
Question 12: What is the term for the change of a substance from a gas to a liquid?
Melting
Freezing
Evaporation
Condensation
Question 13: Which of the following is a physical property of a substance?
Ability to burn
Ability to rust
Color
Ability to decompose
Question 14: What is the term for the change of a substance from a liquid to a solid at its freezing point?
Evaporation
Freezing
Melting
Condensation
Question 15: Which of the following is an example of a chemical change?
Mixing sugar and water
Dissolving salt in water
Burning paper
Melting ice
Question 16: What is the term for the ability of a substance to undergo a specific chemical change?
Physical property
Chemical property
Mechanical property
Biological property
Question 17: Which of the following is a physical change?
Digestion of food
Rusting of iron
Burning of wood
Decomposition of plants
Question 18: What is the term for the change of a substance from a gas to a solid?
Melting
Freezing
Evaporation
Deposition
Question 19: Which of the following is a chemical property of iron?
Ability to conduct electricity
Ability to rust
Color
Solubility in water
Question 20: What is the term for a substance that takes part in a chemical reaction?
Reactant
Product
Solvent
Solute
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