Class 7 Science MCQs - Chapter 17

Particle Model of Matter Multiple Choice Questions (MCQ) PDF - 6

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Particle Model of Matter Questions & Answers PDF Download: MCQ Quiz 6

MCQ 26: When matter changes its state

no new substances are formed
arrangement of particles is changed
motion of particles is changed
all of them

MCQ 27: Change in the state of matter from liquid into solid is known as

melting
boiling
freezing
solidifying

MCQ 28: Pollen grains in water were first observed by Scottish scientist

Democritus
Aristotle
Robert brown
Albert Einstein

MCQ 29: A theory that matter is made up of small discrete particles which are like solid balls, was presented by

Democritus
Aristotle
Robert brown
John Dalton

MCQ 30: Gold is often in a state of matter which is

solid
liquid
gas
molten

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