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MahaScience9
Chapter-wise Questions & Answers
Tap a chapter below to open its important Q&A.
01Laws of Motion▼
Textbook page 1
Q1. State Newton's First Law of Motion.
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Q2. Define inertia with an example.
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02Work and Energy▼
Textbook page 18
Q1. Define work done by a force.
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03Current Electricity▼
Textbook page 30
Q1. State Ohm's Law.
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04Measurement of Matter▼
Textbook page 46
Q1. What is the mole concept?
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05Acids, Bases and Salts▼
Textbook page 58
Q1. What is a neutralisation reaction?
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06Classification of Plants▼
Textbook page 75
Q1. What is the basis of plant classification?
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07Energy Flow in an Ecosystem▼
Textbook page 81
Q1. Define food chain and food web.
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08Useful and Harmful Microbes▼
Textbook page 88
Q1. Give two examples of useful microbes.
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09Environmental Management▼
Textbook page 96
Q1. What is the 3R principle?
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10Information Communication Technology (ICT)▼
Textbook page 108
Q1. What is ICT?
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11Reflection of Light▼
Textbook page 115
Q1. State the laws of reflection.
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12Study of Sound▼
Textbook page 128
Q1. What is the audible range of sound for humans?
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13Carbon: An Important Element▼
Textbook page 138
Q1. Why is carbon called the backbone of organic compounds?
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14Substances in Common Use▼
Textbook page 150
Q1. Name two substances used as antacids.
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15Life Processes in Living Organisms▼
Textbook page 163
Q1. Name the basic life processes.
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16Heredity and Variation▼
Textbook page 179
Q1. Define heredity.
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17Introduction to Biotechnology▼
Textbook page 194
Q1. What is biotechnology?
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18Observing Space: Telescopes▼
Textbook page 209
Q1. What is a telescope used for?
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