Physical and Chemical Changes Study App | Class 7 Science Quiz e-Book PDF | 31
Class 7 Science MCQs (Grade 7) From Textbook

Class 7 Science MCQs – Practice Test 31 (Chapter 17)

Physical and Chemical Changes Quiz with Answers PDF – Test 31

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Study Physical and chemical changes Quiz Questions and Answers PDF for science online knowledge platforms. Download the Physical and Chemical Changes Quiz PDF e-Book, Ch. 17-31 to learn Class 7 Science Course. Solve Physical Changes MCQs PDF, Physical and Chemical Changes Quiz Questions and Answers for science digital learning engagement. Free Physical and Chemical Changes Study App: Download the Class 7 Science Quiz App to learn physical changes, making plastics, magnesium and oxygen, iron and sulphur test prep for science online knowledge platforms.

Download the "Physical and Chemical Changes Quiz" App (iOS & Android): Name of the inventor who invented plastic is; MCQ with answers: john green, john dalton, albert einstein, and john hyatt. Learn Physical Changes MCQ Questions, download Google Book (Free Chapter) to strengthen exam readiness online.

Physical and Chemical Changes Quiz PDF Download – Test 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

Physical and Chemical Changes Quiz App & e-Book – Class 7 Science Study Material

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