Matcb the properties from the table (1-6) with their opposites (a-f). Use the glossary or your dictionary to help you.

aheavy btough copaque drigid eweak fsoft

1breaks easily

2 clear

3 easy to shape

4 hard

5 light

6 strong

How do you say these materials in your language?

nylon ■ cardboard ■ asphalt

Writing

6 Choose a material from
Exercise 5 and write a
description of its properties
and uses.

7 Exchange descriptions with
your partner and identify
their material.

 

. :.J

¹:^{K?;

 

 

 

 

 

 

 

 

	aluminium brass (copper and zinc)		aircraft, window and door frames, cooking foil valves, taps
	light, easy to shape doesn't rust in contact with air and water, strong
4 5	cement copper diamond	mixed with water it dries to a hard material easily made into wire, carries electricity well hardest natural material, can cut glass and metal	pre-made building blocks, to hold bricks together electrical wire, tubing industrial cutting and grinding
	glass iron	clear, hard, breaks easily	windows, bottles engineering
	hard
	mild steel (iron + 0.15-0.3% carbon)	hard, strong, quite easy to shape	bridges, ships, cars
	optical fibre	carries light and coded messages	lighting, cable TV, telecommunications
	plastic	light, strong, easy to shape	hard hats, telephones, boats, computer casing
Engineering