Class 7 Science MCQs - Chapter 17
Physical and Chemical Changes Quiz Questions & Answers PDF Download - 31
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The Quiz MCQ: When the state of matter is changed from solid to liquid, we call it; "Physical and Chemical Changes" App (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 Exam Questions and Answers PDF Download: Test 31
When the state of matter is changed from solid to liquid, we call it
- melting
- freezing
- boiling
- condensing
The name of the inventor who invented plastic is
- John Dalton
- John Green
- Albert Einstein
- John Hyatt
'Plastics' are
- nature made
- self made
- man made
- ion-made
The reaction of 'magnesium' with air is
- exothermic reaction
- endothermic reaction
- reversible reaction
- substitution reaction
The color of solid sulphur is
- green
- brown
- white
- yellow
Class 7 Science Mock Tests
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