Physical and Chemical Changes Multiple Choice Questions and Answers 24 PDF Download

Learn physical and chemical changes multiple choice questions, grade 7 science online test 24 for elementary school degree online courses, distance learning for exam prep. Practice physical changes multiple choice questions (MCQs), physical and chemical changes quiz questions and answers for science class for 7th grade science test.

Study elementary school science multiple choice questions (MCQs): when liquid is cooled down, it changes into solid, this process is known as with options freezing, melting, condensation and sublimation, physical changes quiz with online student portal questions to ask to help in teaching methods and teaching strategies. Free science study guide for online learning physical changes quiz questions to attempt multiple choice questions based test.

MCQs on Physical and Chemical Changes Worksheets 24 Quiz PDF Download

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

  1. melting
  2. freezing
  3. condensation
  4. sublimation

B

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

  1. steel
  2. iron
  3. aluminum
  4. copper

B

MCQ: One or more new substances are formed due to

  1. physical change
  2. chemical change
  3. biological change
  4. state variation

B

MCQ: First thing that happens during chemical reaction is that

  1. a new substance is formed
  2. a substance is reversed to its components
  3. energy is given out
  4. atoms remain same

A

MCQ: Density of liquids is

  1. lower than solids but higher than gases
  2. lower than solids and gases both
  3. higher than solids and gases both
  4. higher than solids but lower than gases

A