CG Board Class 6 Science Nature of Matter
Select the correct answers;
a) What is the state of water vapour
- Solid
- Liquid
- Gas
- None of the above
b) Which of the following material is in soluble in water-
- Washing soda
- Sand
- Salt
- Blue vitriol
c) Which of the following is not magnetic-
- Iron
- Gold
- Nickel
- Cobalt
d) Which of the following is a good conductor of electricity-
- Wood
- Bakelite
- Plastic
- Copper
e) We can smell perfume in all corners of a room, while the bottle is kept in one corner. This is called –
- Solubility
- Diffusion
- Conductivity
- Insolubility
Fill in the blanks
a) All matter occupies _______and has_________. [Space and Weight]
b) Dry leaves are _________ conductors of electricity. [Bad/Poor]
c) We can clearly see through a glass, thus it is _________.[Transparent]
d) We can smell a stack of garbage even at a distance because gas is ____________in air.[Diffused]
e) We wear sweaters in winters because air present in between sweater and cloth is a __________ conductor of heat.[Bad/Poor]
Answer the following questions:
1) A glass full of milk is heavier compared to an empty glass. Why?
A glass full of milk is heavier compared to an empty glass because:
Matter has weight, as established in the text
When milk (which is matter) is added to the glass, its weight adds to the weight of the empty glass
2) Air is matter. Explain by giving an experiment?
Air is matter because:
Using two balloons filled with air attached to a wooden strip balance
When air is removed from one balloon, the balance tilts toward the balloon that still contains air
This proves air has weight, which is a property of matter
3) Water is a transparent matter, give experimental evidence.
Water is transparent matter because:
When we try to read words through a glass filled with water
We can see clearly through it
This demonstrates water is transparent, as we can see objects clearly through it
