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USE SUN ENERGY TO COOK FOOD?
Elise Elise Solar
Zack Flower
Hotdogs Hotdogs


Electricity is most often made by burning coal or natural gas. Both pollute the air.
Wind and solar energy may be used in many ways including creating electricity.
"Wind and solar energy" do not pollute the air. Power plants are now offering 
electricity made from wind energy for your home at a reduced cost.

Violent, destructive weather events are becoming more frequent. Homes may be
lost to tornadoes; electricity may be off for days. Children need survival training
before they are faced with coping with disaster. 

"Make survival training fun" by using this experiment as part of a "camping out"
project where fires are prohibited. That's most of the American West during our
prolonged drought.

"Children learn by doing" and doing with their parents is the best kind. In this 
"easy, inexpensive, fun, experiment," Mom, Dad, and the kids are invited to 
use their "creative problem solving skills" to 'design and create 4 solar ovens'

To make it more interesting tie lunch to the experiment. Unless the BEST SOLAR OVEN 
GETS "hot enough to cook lunch," there will be no lunch.

 Kids ages 5-95 will love this "high interest solar experiment" which will make a "grand 
Science Project" 
for school science fairs.


This is a great way to "practice SPICE Children's Ecology" as children learn survival skills.

So let's begin the "GREAT SOLAR COOKED LUNCH" EXPERIMENT!"

BUILDING SOLAR OVENS: While at an altitude of 8,400 feet, with a temperature of 65 degrees F., and a steady small wind, the Kellogg Family created and tested the 4 solar ovens shown above. The best oven heated up to 180 degrees F.  Take a look at the images above and think about making a solar oven of your own. 
Which one do you think will heat up most?

SPICE CONNECTIONS: Variety & Similarity (4 different ovens), Interaction and Interdependence (sun, ovens, food), Change (Temperature)

SUPPLIES: LARGE PIZZA BOXES OR SIMILIAR BOXES, BOX KNIFE OR SCISSORS, HEAVY DUTY ALUMINUM FOIL, CLEAR TAPE, CLEAR PLASTIC WRAP, RULER, OR WOODEN SPOON, ROLLS OF NEWSPAPER, BLACK SPRAY PAINT OR BLACK CONSTRUCTION PAPER, THERMOMETER. Paper and pencils for keeping a record. (you may not use all of these materials, you may substitute other materials).

CLUES: BLACK ABSORBS HEAT FROM THE SUN. INSULATION HELPS TO KEEP THE HEAT IN THE OVEN. THE MORE SUNLIGHT YOU CAN REFLECT INTO THE OVEN THE GREATER THE HEAT. THE BETTER THE ANGLE OF THE SUN'S HEAT TO THE INSIDE OF THE OVEN THE GREATER THE HEAT.

PROCEDURE: Study the pictures of the Kellogg solar ovens above.  Notice how they are alike and how they are different. If you want more knowledge, google: HOME SCIENCE TOOLS and scroll through the pages to see the solar oven they made with very precise instructions. Also, you may want to google "Solar Ovens" to see a large number of different designs.

Or, YOU MAY JUST WANT TO GET STARTED EXPERIMENTING! GO FOR IT!  Caution: These ovens get really hot and so does the food. Use a pot holder to protect your hands.

If so, STATE THE PROBLEM - Which oven will get and hold heat best? 

STATE an HYPOTHESIS: My best solar oven will reach, and hold _______________ degrees of heat.

PROCEDURE: Google some research, gather materials, create and test the solar ovens. Keep track of 
results as you go with pen and paper. 

RESULT - State my hypothesis was (true) - (false).  I was, was not,  able to cook lunch in my solar oven.

P.S. Even though the Kellogg family was in the high mountains, with cool temperature, with some clouds coming and going, and with a breeze, they were able to cook hot dogs, nachos, and S'mores for all the family.  That with cold carrots made a great lunch! Their best oven reached 180 degrees F.  They put hot dogs on a clear glass plate inside the cookers so they would not be messy. If you live where it is really hot in summer, your oven will get hotter. Can you figure out which of the four solar ovens shown above had the highest temperature? Explain why you chose the one you did for the best one and the worst one. Rank them from 1-4 with (1) being best.

When you have made your best solar oven, experiment with cooking some other foods such as cheese toast, cookies, or reheating food already cooked. Remember it takes longer for the sun to cook food and the best time is on a clear day between 11:00 A.M. and 3:00 P.M. Have fun and surprise your mother!

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