50 Very Short Answer Type Questions — Chapter 6
Definitions & Concepts (1–10)
1. What is a material?
A material is a substance from which things are made.
2. Define texture.
Texture is how a surface feels to touch (e.g., rough or smooth).
3. What is hardness?
Hardness is the ability of a material to resist scratching or denting.
4. Define flexibility.
Flexibility is the ability of a material to bend without breaking.
5. What is solubility?
Solubility is the ability of a substance to dissolve in a liquid (like water).
6. What does transparent mean?
Transparent materials allow light to pass through clearly (like clear glass).
7. What is elasticity?
Elasticity is the ability to return to original shape after stretching.
8. Define conductor.
A conductor allows heat or electricity to pass through it easily (e.g., metal).
9. Define insulator.
An insulator does not allow heat or electricity to pass through easily (e.g., wood).
10. What is meant by 'property of a material'?
A property is a characteristic used to describe or test a material (e.g., hardness).
Properties & Examples (11–20)
11. Give one example of a rough material.
Sandpaper is a rough material.
12. Name one smooth material.
Glass is smooth.
13. Give an example of a hard material.
Stone is hard.
14. Give an example of a soft material.
Cloth is soft.
15. Name one flexible material.
Rubber is flexible.
16. Give an example of an elastic material.
A rubber band is elastic.
17. Name one transparent object.
A clear glass bottle is transparent.
18. Name one opaque object.
A wooden block is opaque.
19. Give an example of a conductor of heat.
Copper is a good conductor of heat.
20. Give an example of an electrical insulator.
Plastic is an electrical insulator.
States of Matter & Classification (21–30)
21. What are the three states of matter?
Solids, liquids and gases.
22. State one feature of solids.
Solids have definite shape and volume.
23. State one feature of liquids.
Liquids have definite volume but take the shape of their container.
24. State one feature of gases.
Gases have neither definite shape nor definite volume.
25. Give two examples of solids.
Wood and stone are solids.
26. Give two examples of liquids.
Water and milk are liquids.
27. Give two examples of gases.
Oxygen and nitrogen (in air) are gases.
28. Where are particles closest: solid, liquid or gas?
Particles are closest in solids.
29. Which state spreads to fill the container?
Gases spread to fill the container.
30. Which state can flow but keeps its volume?
Liquids can flow and keep their volume.
Simple Tests & Experiments (31–40)
31. How can you test if a material is hard?
Try to scratch it with a harder object; if it doesn't scratch, it is hard.
32. How to test flexibility?
Bend the material gently; if it bends without breaking it's flexible.
33. How to check solubility?
Stir the substance in water and see if it dissolves.
34. How to test transparency?
Hold the material in front of an object and see if it is clearly visible through it.
35. How can you show air is a gas in a balloon?
Inflate a balloon and observe that air fills it and takes its shape.
36. What does sand + water show?
Sand does not dissolve and settles, showing insolubility.
37. How to test elasticity of a rubber band?
Stretch and release the band; if it returns to original size it is elastic.
38. How to test a material is a conductor of electricity (safely)?
Use a simple circuit with a battery and bulb; conductor will light the bulb (teacher-supervised).
39. What observation shows a solution is formed?
The solute disappears and the mixture looks uniform and clear.
40. How to separate sand from water?
Use filtration; sand remains on filter paper and water passes through.
Uses, Examples & Quick Revision (41–50)
41. Why is glass used for windows?
Because it is transparent and allows light to pass through.
42. Why are metals used for cooking utensils?
Metals conduct heat well, cooking food faster.
43. Why use rubber for tyres?
Rubber is flexible and provides good grip and cushioning.
44. Name one material that rusts.
Iron rusts when exposed to air and water.
45. Give an example of a material change due to heat.
Wax melts when heated.
46. Give an example of a reversible change.
Melting and freezing of water are reversible changes.
47. What is a mixture?
A mixture contains two or more substances mixed together but not chemically combined.
48. Give an example of a mixture.
Salt and sand mixed together is a mixture.
49. How do materials help in daily life?
Materials are chosen for their properties to make useful objects (e.g., wood for furniture).
50. What should students record after experiments?
Students should record what they did, what they observed, and their conclusion.
Very Short Answer Type Questions CBSE Class 6 Science – Chapter Wise Study Materials Based on NCERT