Class 7 Courses

Chapter 18: Class 7 Science Exam Tests

Class 7 Science MCQs - Chapter 18

Physical and Chemical Changes Quiz Questions and Answers PDF - 31

The Physical and chemical changes Quiz Questions and Answers PDF (physical and chemical changes Quiz PDF e-Book) download Ch. 18-31 to learn Grade 7 Science Course. Solve Physical Changes MCQs PDF, Physical and Chemical Changes Quiz Questions and Answers to learn online classes courses. The Physical and Chemical Changes Quiz App: Download free learning app for physical changes, making plastics, magnesium and oxygen, iron and sulphur test prep for distance learning.

The Quiz: When state of matter is changed from solid to liquid, we call it; "Physical and Chemical Changes" App Download (iOS & Android) with answers: Freezing; Melting; Boiling; Condensing; to learn online classes courses. Study Physical Changes MCQ Questions, download Amazon eBook (Free Sample) for online degree programs.

Physical and Chemical Changes Questions & Answers PDF Download: MCQ Quiz 31

MCQ 151:

When the state of matter is changed from solid to liquid, we call it

  1. melting
  2. freezing
  3. boiling
  4. condensing
MCQ 152:

The name of the inventor who invented plastic is

  1. John Dalton
  2. John Green
  3. Albert Einstein
  4. John Hyatt
MCQ 153:

'Plastics' are

  1. nature made
  2. self made
  3. man made
  4. ion-made
MCQ 154:

The reaction of 'magnesium' with air is

  1. exothermic reaction
  2. endothermic reaction
  3. reversible reaction
  4. substitution reaction
MCQ 155:

The color of solid sulphur is

  1. green
  2. brown
  3. white
  4. yellow

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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 (iOS & Android)

Earth Science App (Android & iOS)

Earth Science App (Android & iOS)

8th Grade Science App (Android & iOS)

8th Grade Science App (iOS & Android)