Product: Solar Oven
Subject: A device that can boil water using energy from the Sun
Research and Take Notes
Gather information – Look up “solar oven” on the Internet to find out how such devices work. You may find different types of solar ovens, but all will have common features.
Take notes – Take notes or draw sketches of ideas that you want to incorporate into your design. Look for the simplest design that will be easy for you to build and will meet your requirements.
Determine your materials – List all of the materials you will need to build your oven. Choose materials that are inexpensive and easy to find. Solar ovens often use materials that can be found in your home or school, such as cardboard boxes and aluminum foil.
Develop Your Design
Apply your knowledge – You know that dark colored surfaces get warm in sunlight and that shiny surfaces reflect sunlight. Solar ovens uses shiny panels to reflect sunlight into the cooking area, which is usually painted black.
Consider the constraints – Design a plan that you can build within the time constraints for the project and that uses simple materials. You will also need a workspace and an outdoor, sunlit location where you can set up your oven and leave it for periods of time.
Draw a sketch – Make a labeled sketch of your design. List any additional tools and materials that you will need to build the oven.
Build and Test Your Solar Oven
Follow safety procedures – Use caution when cutting cardboard with a knife or other cutting tool. Be sure to use gloves or oven mitts when handling the container of water.
Build and test your oven – Gather your materials and build your oven. Place it in a sunny outdoor spot with the cooking area facing the Sun. The oven should begin to reach 100 degrees Celsius within 20 minutes or so.
Modify your design – If the water does not boil, reposition the oven so more light is reflected in the cooking area. Think of ways to increase the efficiency of your oven. Make design changes to raise the temperature of teh oven more quickly.
Write up your lab report – Complete your sketches, notes, lists, and explanations about your oven. Write a paragraph or draw a detailed diagram that describes how the oven works. Hand in your lab report.
Demonstrate your oven – Prepare demonstration of your solar oven for teh class. If your demonstration must take place outdoors, point out the parts of the oven and explain how it works. Compare your design with those of others with the same project. If your oven can be used to heat pizza or another food, you may want to share some with the class.
Deadline: 26th of October 2012
15 points – Product
20 points – Lab Report
10 points – Presentation
5 points – Use of Class Time
Total: 50 points
An additional of 5 points will be given to outstanding projects.