CD2
44
1
Listen and repeat.
[photo 073l]
Project
6
6
Find out about how
people recycle paper,
plastic, or aluminum.
Make a flow chart.
2
Watch the video.
furnace
melt
sand
machine
4
Answer the questions.
Where should we put our old glass bottles?
2
What do they mix the pieces of glass with?
3
Why does the glass melt?
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.
Dostları ilə paylaş: