19. Observation
• The level of water in both the containers are
different. This shows that liquid does not have a
shape of its own. It takes the shape of the
container.
• The volume of water remains the same in both
the container.
25. Milk is a white colour liquid.
Petrol and kerosene have a property of catching fire.
Cooking oil is an edible liquid. It
can also catch fire easily.
28. Boiling water will turn into vapour on further heat.
These vapours mix with the air present in the room.
Gases completely fill the available space.
29. When air is filled
into the balloon,
we can see it grows
bigger and bigger
31. Properties of gases
• Gases do not have a fixed volume.
• They are not visible.
• They can flow more easily than liquid.
• We cannot hold them with our hand.
34. • Choose the odd one out
a) Milk
b) Honey
c) Sand
d) Soft drink
• I am a state of matter. I do not change my shape and cannot move around. I can be
found everywhere around you. Who am i?
• True or False
a) Liquids are easy to compress.
b) The particles of a gas are packed tightly together.
35. Water exists in all three states of matter.
Solid Ice
Liquid water
Gaseous Vapour
36.
37. States of matter are inter – changeable.
HEAT
COOL
SOLID LIQUID
HEAT
GAS
COOL
38. • Which of the following gases is compressed in cylinders and used as a
fuel?
a) Air
b)Steam
c) LPG
d)None of the above
• Which of the following is the correct characteristic of water?
a) Water exists in all three states of matter.
b)Water has odour.
c) Water has taste.
d)Water is blue in colour.