Transcript Lesson 9 - Properties of materials

PROPERTIES OF MATERIALS
Aim: Vocabulary development (describing properties
of materials)
Think of as many different materials as
you can in two minutes.
Find the words in the text which have
the same meaning as the words given.
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characteristics =
be different =
usually =
form =
think =
long-lasting =
water-resistant =
colour, paint =
wanted =
quite =
because =
Find the words in the text which have
the same meaning as the words given.
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characteristics = properties
be different = differ
usually = commonly
form = shape
think = consider
long-lasting = durable
water-resistant = waterproof
colour, paint = dye
wanted = desired
quite = fairly
because = as
Write the opposites.
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pull =
suitable =
flexible =
hard =
heavy =
attractive =
hard-wearing =
Write the opposites.
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pull = push
suitable = unsuitable
flexible = stiff, inflexible
hard = soft
heavy = light
attractive = unattractive
hard-wearing = durable
Complete the sentences from the text
using the right preposition.
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The suitability of a material to a particular job depends __
its properties.
Solid materials can differ __ one or more of the following
ways:
Leather is waterproof and flexible; it can also be dyed __ a
range of colours.
Rubber is also waterproof and flexible; it is very hardwearing, and will not slip easily when __ contact with
flooring materials.
Shoes made with leather uppers and rubber soles can carry
__ their job effectively and are durable, which means they
last a long time before wearing__.
Complete the sentences from the text
using the right preposition.
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The suitability of a material to a particular job depends on
its properties.
Solid materials can differ in one or more of the following
ways:
Leather is waterproof and flexible; it can also be dyed in a
range of colours.
Rubber is also waterproof and flexible; it is very hardwearing, and will not slip easily when in contact with
flooring materials.
Shoes made with leather uppers and rubber soles can carry
out their job effectively and are durable, which means they
last a long time before wearing out.
Remember:
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depend on = zavisiti od
in this/that way = na ovaj/onaj nacin
carry out = do, perform (obaviti)
carry out instructions
The leaves of plants are designed to carry out photosynthesis.
carry out interviews
carry out research
carry out tests
Therefore, in cells that have no mtDNA (termed cells), the electrontransport chain cannot function and the cells cannot carry out oxidative
phosphorylation.
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wear out = pohabati, istrositi (materijal)
Wordbuilding
1. The length of hydrogen bonds depends on bond__________ (strong),
temperature, and pressure.
2. The ______ (dense)of water is approximately one gram per cubic
centimeter.
3. A bicycle tyre is made from rubber because it needs to be _______
(flex) and tough.
4. Consider which materials would be ____ (suit) to make a pair of shoes.
5. Rubber is unsuitable as it is ________ (attract) and wood is too heavy
and __________ (flex).
6. How well a product does the job it was designed for depends on the
__________ (effective) and _________ (durable) of the materials
that were used to make it.
Wordbuilding
1. The length of hydrogen bonds depends on bond strength, temperature,
and pressure.
2. The density of water is approximately one gram per cubic centimeter.
3. A bicycle tyre is made from rubber because it needs to be flexible
and tough.
4. Consider which materials would be suitable to make a pair of shoes.
5. Rubber is unsuitable as it is unattractive and wood is too heavy and
inflexible.
6. How well a product does the job it was designed for depends on the
effectiveness and durability of the materials that were used to make
it.