FILL THE GAPS IN THE NEXT TEXT: Tema 2: -States of matter 1.
Matter exists in three forms: -Solid, for example wood or
a)................ -Liquid, for example b)................. -Gas,
for example c)...............
SOLID LIQUID GAS SHAPE: Solids have a d)............shape
Liquids do not have a
definite shape. They take the shape of the bottom of their
e)..............
Gasses do not have a definite shape. They take the shape of
their f)............... container
VOLUME: Solids have a g)............. volume Liquids have a
h)...........
volume Gases do not have a fixed volume. They i)............. to
j)............ their whole container
COMPRESSIBILITY: Solids cannot easily be k)............. If we
press on a brick, its volume does not l)...................
Liquids cannot be easily
be ll)................. (can’t push) If we press on a liquid,
its volume does not m)............very much
Gasses can be compressed
(can push) If we press on a gas, its volume
n)....................
FLOW: Solids cannot flow (they do not ñ)............ steadily
from one place to o)............)
Liquids can p)............. Gases can q)........... If they are
not in a closed container, they can flow very r).............. from
one s)............. to another
Questions: 1ª) Copy the sentences below and choose the correct
answers: a) Gases can/cannot be compressed, and they can/cannot
also flow b) Solids can/cannot easily be compressed, and they
can/cannot flow c) Liquids can/cannot easily be compressed, but
they can/cannot flow. 2ª) Which state of matter has: a) neither a
fixed volume nor a definite shape? b) a fixed volume and a definite
shape? c) no definite shape, but a fixed volume? 3ª) We put 500 mL
of gas in a 1000 mL container. a) What happens? Do we still have
500 mL of gas? b) What happens if we do the same thing with water?
4º) Put the following letters in order and you will get a word
related to our vocabulary
a) n e r c a n t o i b) c o l e l a u m c) g e l t i n m t p o i
n d) a h s p e e) c l e a t i p r f) p e p r o t y r g) n g l i i b
o p i n t o h) c e n a t s b u s
HOW DO WE USE SOLIDS, LIQUIDS AND GASES? Solids, liquids and
gases all have different properties, so we use them for different
things. For example, we use solids such as bricks and wood for
building houses because they have a definite shape, have a fixed
volume, and cannot flow. The properties of substances also affect
how we can store and transport them. Answer the questions: 5ª) To
make a chair, would you use a solid, liquid or gas? Why? 6ª) Look
at the pictures on the right. We can transport petroleum, and
natural gas in pipes no coal. a) Why? b) Is each of these
substances a solid, liquid or gas? A train transporting coal An oil
pipeline c) What property affects how we can transport it? 7ª) a)
If you spray air freshener into a room from an aerosol, what
happens? b) What property of gases is this due to? 8ª) Why is
butane gas stored in: a) closed container? b) pressurised
container?
