By Lara GodoffBy Lara Godoff 77thth period ; 2 period ; 2ndnd quarter quarter

66thth grade grade Robert Louis Stevenson Middle SchoolRobert Louis Stevenson Middle School

Background Information:Background Information: Solar Oven’s provide an easy way to Solar Oven’s provide an easy way to

save electricity. It has to be hot out save electricity. It has to be hot out to cook something, the sides of the to cook something, the sides of the cooker reflect the heat to the middle cooker reflect the heat to the middle of the cooker. It works by collecting of the cooker. It works by collecting heat from the sun and concentrating heat from the sun and concentrating it to heat a pot or other container for it to heat a pot or other container for cooking. Solar oven feature some cooking. Solar oven feature some kind of reflector to gather and kind of reflector to gather and concentrate the sun’s ray’s. concentrate the sun’s ray’s.

You can cook things in a cardboard box, You can cook things in a cardboard box, Styrofoam, and metal and cooker’s.Styrofoam, and metal and cooker’s.

Testable questionTestable question Does a aluminum foil solar oven Does a aluminum foil solar oven

cook faster then a black garbage cook faster then a black garbage bag solar oven? bag solar oven?

HypothesisHypothesis If you cook food on aluminum foil If you cook food on aluminum foil

then it will cook faster then a black then it will cook faster then a black garbage bag.garbage bag.

Experimental variablesExperimental variables Aluminum foilAluminum foil Black garbage bagBlack garbage bag Control variablesControl variables CookiesCookies CardboardCardboard

Materials Card board box cut

in half ( 2 ft. and 1 inch each )

1 tablespoon of Cookie dough

Aluminum foil ( 1 ft. and 3 inches )

Black garbage bag (1 bag )

Paper and pens (to take notes.)

ProcedureA I buy all my material’s BI cut the cardboard box into a rectangle shape and

tape on the garbage bag onto the cardboard box. Repeat for the foil!

CThen make the cookie batter and put a spoonful of

batter on both, foil and garbage bag solar oven.D Then I make cookie batter & put a spoonful of

batter on the solar oven.EThen wait and take notes and time the cookies and

see which one cooks faster repeat x2.

Observation & DataObservation & Data

15 25 35 50

Black garbagebag

Nothing has happened

chocolate chips are melting

The bottom is crisp but top is liquid

The bottom is done but the top is still a little liquidly done at 62 min.

Aluminum foil

chocolate chips have started to melt

chocolate chips are melted and the bottom is starting to crisp

the bottom is crisp and top almost done

Everything is finished at 53 minutes. it tastes good to!

0

10

20

30

40

50

60

70

min

utes o

f coo

king

type of oven

black garbagebag

aluminum foil

Data Analysis Data Analysis

In my project tin foil was faster, but In my project tin foil was faster, but they both cooked the cookie the same they both cooked the cookie the same way from the bottom to the top.way from the bottom to the top.

It seems that they both cook the It seems that they both cook the same way but the tin foil seems to same way but the tin foil seems to cook faster.cook faster.

Something unusual that I observed Something unusual that I observed was that the cookies grew in different was that the cookies grew in different shapes the garbage bag grew up, and shapes the garbage bag grew up, and the aluminum foil grew flat and crisp! the aluminum foil grew flat and crisp!

Conclusion

My hypothesis was right, the aluminum foil solar oven worked faster!

I know that it is right because the foil attracts heat and the heat reflects to each side of the foil which makes it heat up faster and cook better.

The garbage bag did not work as well because the bag was plastic and it melted a little bit, which ruined the cookie and it cooked slower because it did not attract as much heat.

Work - cited & thanks Work - cited & thanks Thanks to Mr. Pham ! You are Thanks to Mr. Pham ! You are

awesome.awesome. Thanks to my parents for helping Thanks to my parents for helping

me with my project and to every me with my project and to every class mate I asked for help! class mate I asked for help!

Work-citedWork-cited Livestrong.com/article/149328-Livestrong.com/article/149328-

the-best-solar-oven-plans/ the-best-solar-oven-plans/ (October23) title: solar oven by (October23) title: solar oven by Cynthia Myers Cynthia Myers Livestrong.com/article/140615-Livestrong.com/article/140615-solar-cooker-facts/ (November solar-cooker-facts/ (November 4) title: solar oven by :Cynthia 4) title: solar oven by :Cynthia Myers Myers The End!! The End!!