PoLyGoN SoLaR CoOkeR

MATERIAL USES

A cupboard box Make the solar cooker

Aluminium foils RELECT the light FROM the SUN INTO THE BOX

Coca-cola can USES AS A CONTAINER

Cling wrap AS A COVEROF THE BOX MAKE A GREEN HOUSE

sand HOT SAND CAN SAVE THE HEAT AT THE BOX

A

B

C

A >> This part reflect the light into the box

B>> Use black color to paint the polygon solar cooker

C>> This door is for putting the can into the solar cooker

D>> Put a piece of cling wrap to cover the box

E>> Use aluminium foils around inside surface

F>> Paint the can in black color

G>> Put sand at the bottom of the box

D

E

FG

Step1

Cut the cupboard box into polygon shape.

Step2

Cut the door in the middle if the box

Step3

Paint the surface inside in light silvery color

Paint the surface outside in black color

Step4

Make a light silvery wok and put it on the top of the box<<For reflect the light into the box

Step5

Put sand at the bottom of the box

Step6

Put a piece of cling wrap to cover the box

Step7

Put a black can into solar cooker

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5

10

15

20

25

30

35

40

5 10 15 20 25 30 35 40

溫

度

(攝氏 )

The temperature changes in each 5mins

時間 (分鐘 )

Our result is not very well as we plan

before. The temperature rise very slow,

the temperature of the water only rise about 9 degree

Celsius. And it falls down very quickly.

We think the area inside should be small so there will not be able to let the air cooling down the water. And the sand should be put under light before put it into the box, because ths sand is cool if we don’t put it under the light for a while.

CHAN CHUN YING

LEE MEI YAN

TSUI YEE YIN

WAN HIU YAT

YUEN CHING MAN