Solar Cooking for a Developing Nation Background: Solar energy is the least polluting and most inexhaustible of all known energy sources, and it is free. Cooking in a solar oven is easy, fun, and helps the environment. Many Americans are aware of the need to take responsibility for the greenhouse gas emissions we create. Carbon dioxide released from burning fossil fuels like oil, coal, and gas is harmful to the environment, and is created when using electricity or gas to cook your food. Using a solar oven can be an important step towards your family becoming “carbon neutral”, and for some families it is a necessity for cooking food and pasteurizing water. People from all over the world depend on solar ovens. The Peace Corp has provided a grant to fund the research and construction of solar cookers to be used in third world countries where there is no electricity for food preparation. You have been divided into design teams to complete a prototype cooker for testing and evaluation. Framing question: Why would your solar oven be useful in the developing country of your choice? Four questions about your developing country: 1. 2. 3. 4. 1. Requirements Choose a developing nation to focus on (GROUP) Due date 10/04 2. Research a solar oven design (GROUP) a. Must be made from common household equipment (cannot be purchased) 3. Decide on the food item that will be cooked (GROUP) 10/04 4. Build a solar oven (INDIVIDUAL) a. You must have proof! Pictures are great but you could bring it in too.) 5. Redesign your solar oven to work more efficiently (GROUP/ INDIVIDUAL) 10/14 6. Write a research paper which includes (INDIVIDUAL): a. description of the country you chose to make the solar oven for and why they need it (four questions and answers defending your argument for the framing question). You need facts! b. the science behind how a solar oven works: how energy was transformed from one type of energy to another, the change of matter that occurred (physical and/or chemical) (and how you knew), changes in state of matter (if applicable, but this needs to be discussed), whether the thermal energy was endothermic or exothermic (and how you knew) c. how your specific solar oven worked: was it able to cook the food (how did you know), did the redesign work, (how did you know), did yours work better or worse than your group members (why do you think) 7. Presentation of your groups solar oven (GROUP) a. At least one solar oven must be brought it b. Students should have pictures that show the country of your choice 10/25 10/04 10/14 10/28 Stamp Category Assessed 2 Students generate questions Questions with teacher guidance that are not socially significant, interesting to students and/or researchable. Solar oven Oven does not raise function temperature above the surrounding temperature. Solar oven Construction construction appears careless or haphazard. The redesign was almost Solar oven nonexistent and did not help to redesign be more efficient 4 Students generate questions with minimal teacher guidance but questions may not be socially significant. Questions are researchable. Oven functions by raising the temperature slightly above the surroundings. Construction was careful for the most part. The redesign was plausible but did not help it to be more efficient Research Students have little reasoning Students have some reasoning for why their country needs a for why their country needs a solar oven solar oven Research Students do not answer all of the questions regarding the function of their solar oven Shows understanding of few of the basic concepts regarding how solar ovens work Research Research 6 Students generate socially significant, interesting to students and researchable questions without teacher help Oven functions extraordinarily well reaching the highest temperatures. Great care was taken in the construction process. The redesign worked well to make it work more efficiently Students have great reasoning for why their country needs a solar oven Students answer most of the Students answer all of the questions questions regarding the function regarding the function of their solar of their solar oven oven Shows Shows understanding understanding of of all of the basic most of the basic concepts concepts regarding regarding how solar ovens work how solar ovens work Students are provided credible Students find, evaluate, resources. analyze, and use multiple credible resources with minimal teacher guidance. Students find, evaluate, analyze and refer to multiple resources independently and connect lessons learned to significant ideas or themes. All aspects of the project was submitted on time or early. Almost all aspects of the Most aspects of the project Punctual project were submitted late, were submitted on time there is little evidence of it being completed Communication Students arrive at a conclusion Students are required to Requires students to document, and then document, justify, and document, justify, and share justify, and share conclusions with share conclusions with the conclusions inside the classroom. an audience beyond the classroom. teacher only (no presentation) The presentation is well thought out and informative. Total points _____/60