Last week we made solar ovens out of Big Mac clam shells. Inside the solar ovens we made s'mores. They were fun! Most were made of clam shells, cardboard, tin foil, tape, and cello phane. Some of our highest temperatures were 51, 58, and 60 degrees celcius.Most s'mores took 11 min. to start melting.
We took a grahm cracker and put a marshmallow on top. We then placed that in the oven to melt. Once the marshmallow was melted, we placed chocolate on another grahm cracker and put that onto the marshmallow. Soon after, we had delicious s'mores to eat right before the bell rang to go home.
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How to make a basic solar oven:
Materials:
Cardboard box (small)
tin foil
small ziploc bag (cut to fit over top of box)
tape (clear scotch reccomended)
scrap card board
Black duct tape
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Steps:
1. Cut scrap card board into 3 medium sized rectangles. Cut tin foil into 3 pieces twice the size of cardboard flaps. Tape tin foil to card board flaps and set aside.
2. Line small cardboard box with black duct tape, covering thourougly.
3.Tape ziploc bag over the top of duct tape lined box.
4. Tape tin foil and card board flaps at an upward angle to card board box.
5. Place grahm cracker and marshmallow in solar oven.
6. place in sun where the solar rays will hit tin foil and direct the radiant energy to the marshmallow and slowly cook your food.
7. Keep track of time and temperature in a note book for future juxtaposition. Once starting to melt, keep track of temperature even more, as that is extremely important data to record.
8. Once totally melted, place chocolate on marshmallow and then a grahm cracker on that.
9. Once that's totally melted, remove s'more from oven and enjoy your good for the planet food!
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Now realize that solar cooking is time consuming, but worth while when you think about it. All that delicious nourishment from just the sun. Sometimes you say you hate the sun because of the heat, but then it makes your dessert!
The principles of solar ovens are important. They focus the power of the sun's rays so that heat can build up and cook. I thought it was great watching as everyone tweeked their ovens to try to get maximum heat. Most everyone ended up using the tin foil as and shields to direct the rays. Good fun and learning! Cheers, Mrs.Dahl
ReplyDeleteI loved that project! It was so cool to see what just the sun can do. I hope we can do more fun activities in the future.
ReplyDeleteyes. i loved it. And i cant wait for the field trip.
ReplyDeleteThat was very fun!!!!!
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