Efl guess What! Teacher's Book 6 Grade 6

 4 
Why is recycling glass good for the 
environment?
5
Which objects would you like to make 
from recycled glass?
When we finish using our glass bottles, we put 
them in a recycling bin. A big truck takes the 
bottles to a recycling center. The people at the 
recycling center sort the glass by color. 
A big machine breaks the glass into small pieces. 
Another machine mixes the pieces of glass with 
sand. They put the glass and sand in a special 
oven called a “furnace”. The furnace is very hot. 
The mixed glass and sand melt and become 
liquid. When the glass is liquid, they can change 
its shape to make new bottles. 
They send the new bottles to factories so they 
can use them again. Recycling glass uses less 
energy than making new glass, so it’s better for 
the environment.
CD2
45
3
Read and listen.
 
3
4
2
➞
Workbook page 62
Recycling one 
glass bottle saves 
enough energy to 
power a TV for 
20 minutes.
CLIL: Science
 
77
Unit 6

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Lesson aims
Students learn about the process of 
recycling glass bottles.
New language
recycling bin,
machine, sand, 
furnace, melt, recycling center, sort (by color), break 
(into pieces), become, change (shape), enough, to 
power (a TV)
Recycled language
old,
glass, bottle, lorry, mix, 
special, oven, hot, liquid, make, new, send, factories, 
use, energy, it’s better for the environment, save
Materials
CD2 
|
DVD 
|
Objects made of different 
materials (e.g., an aluminum drinks can, a small glass 
bottle, a small plastic water bottle, a metal fork, 
a wooden spoon, a paper plate or a small envelope, 
a rubber ball, a small cardboard box)
Warmer
•
Play 
Describe and guess
(see page xv) with objects made 
from different materials hidden around the classroom (if 
you don’t have objects, use pictures). Say, e.g., 
It’s made 
of aluminum. It’s silver and green.
When students find 
the item, ask 
What’s it for?