Class 7 Online Courses

Chapter 18: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 18

Physical and Chemical Changes Multiple Choice Questions (MCQ) PDF - 24

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Physical and Chemical Changes Questions & Answers PDF Download: MCQ Quiz 24

MCQ 116: When the liquid is cooled down, it changes into solid, this process is known as

A) melting
B) freezing
C) condensation
D) sublimation

MCQ 117: To make high temperature for formation of ammonia, the substance which is used, is

A) steel
B) iron
C) aluminum
D) copper

MCQ 118: One or more new substances are formed due to

A) physical change
B) chemical change
C) biological change
D) state variation

MCQ 119: The first thing that happens during chemical reaction is that

A) a new substance is formed
B) a substance is reversed to its components
C) energy is given out
D) atoms remain same

MCQ 120: The density of liquids is

A) lower than solids but higher than gases
B) lower than solids and gases both
C) higher than solids and gases both
D) higher than solids but lower than gases

Physical and Chemical Changes Learning App & Free Study Apps

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Physical and Chemical Changes App (Android & iOS)

Physical and Chemical Changes App (Android & iOS)

7th Grade Science App (Android & iOS)

7th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

6th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (Android & iOS)