Class 8 Science Chapter 7: Particulate Nature of Matter — practice questions with answers
Free practice for Class 8 Science, Chapter 7: Particulate Nature of Matter. Try the solved questions below, then take a free test with instant marking and explanations.
52 questions18 easy, 25 medium, 9 hardNCERT · CBSE · State boards
Sample questions with solutions
Q1. Where do pebbles and sand on a riverbank come from?
- Rocks in the mountains broken down by erosion and carried by rivers
- They fall from the sky
- They are made by people
- They grow in rivers
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Answer: A. Rocks in the mountains broken down by erosion and carried by rivers
Why: Rivers keep breaking rocks into finer grains. [p.99]
Why: Rivers keep breaking rocks into finer grains. [p.99]
Q2. Where does sugar ‘go’ when it dissolves in water?
- Its particles spread into the spaces between water particles
- It disappears completely
- It turns into water
- It floats away as gas
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Answer: A. Its particles spread into the spaces between water particles
Why: These are interparticle spaces. [p.101]
Why: These are interparticle spaces. [p.101]
Q3. The spaces between the particles of matter are called ______ spaces.
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Answer: interparticle
Why: Sugar particles fill these spaces. [p.101]
Why: Sugar particles fill these spaces. [p.101]
Q4. Why do solids have a definite shape and volume?
- Their particles are held together by strong attractive forces
- Their particles move freely
- They have no particles
- They are always cold
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Answer: A. Their particles are held together by strong attractive forces
Why: Particles only vibrate in place. [p.102]
Why: Particles only vibrate in place. [p.102]
Q5. The minimum temperature at which a solid melts at atmospheric pressure is its ______.
- melting point
- boiling point
- freezing range
- dew point
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Answer: A. melting point
Why: Solids with weak forces melt at low temperatures. [p.103]
Why: Solids with weak forces melt at low temperatures. [p.103]
Q6. 200 mL of water is poured from container A to B to C of different shapes. What stays the same?
- Its volume
- Its shape
- Its height in each
- Nothing
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Answer: A. Its volume
Why: Liquids have a fixed volume but take the container’s shape. [p.104]
Why: Liquids have a fixed volume but take the container’s shape. [p.104]
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Frequently asked questions
How many practice questions are there for Class 8 Science Chapter 7: Particulate Nature of Matter?
52 questions (18 easy, 25 medium, 9 hard). A few are solved on this page; the free test shows the answer and explanation for every question after you submit.
Is this chapter from the NCERT book?
Yes — it follows the NCERT Class 8 Science syllabus, used by CBSE and many state boards.