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98
5) This object consists of two main parts; one is made mainly of plastic and
metal, the other is made mainly of glass. Light enters the glass section and a
small door in the device opens up when a button is pressed. At the same time, a
smaller window called an aperture adjusts itself to control the amount of light. The
light is then absorbed by a sheet of plastic coated in a special chemical. An
image is formed and this can then be processed and developed into a two-
dimensional paper-based object.
6) A sharp blade inside a plastic container rotates very quickly. It chops or
grinds anything it touches, which we can then use to produce soup, sauces and
dressing.
7) This is a very simple object which originated in China. A small piece of
paper is lit with a match. It bums away until the flame ignites the chemical
compound inside a cardboard tube. The result is a display of light and colour.
16 There are some objects hidden in the grid. Find all of them. Choose
five objects and write a brief description of how they work, using the bold
words and expressions in the activity above.
Q C A R E N G I N E W E R T T Y U
A S D F G H J K L Z X C V B O N M
B A L L P O I N T P E N A Q A C W
Q W E R F O O D P R O C E S S O R
B T Y U I O P A D S A G R K T M J
I A M N B K E T T L E V O C E P T
C E C X Z L K J H G F D S S R U H
Y R S A P O I U Y T R E O E W T E
C O M P A C T D I S C P L A Y E R
L P L K J H G F D S A Q W E R R M
E L I G H T B U L B M N B V C X O
C A M E R A I F I R E W O R K U S
L N K J H G F D S A Q W E R T Y T
T E L E V I S I O N T Y U I O P A
M I C R O W A V E O V E N N G E T
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