Grade 7 Natural Science Project – Task 5

Task Overview:

Students are assigned to design and create a simple oven using everyday materials that can be found at home or in school. The project aims to demonstrate their understanding of how heat can be trapped and used for cooking or baking.

1. Research and Design:
   • Research Phase: Students begin by researching different types of ovens, their basic principles, and how they work (e.g., conventional ovens, solar ovens).
   • Design Phase: Using their research, students sketch out their oven design. This includes planning the dimensions, materials (such as cardboard, aluminum foil, glass), and any additional features they may incorporate (like a reflector for solar ovens).
2. Construction of the Oven:
   • Based on their design, students proceed to construct their oven using the selected materials. Common materials might include cardboard boxes, aluminum foil (for insulation and reflectivity), clear plastic (for windows in solar ovens), and tape or glue for assembly.
3. Testing and Adjustment:
   • Once the oven is constructed, students test it using a simple cooking task, such as baking cookies or heating a small dish.
   • They observe how effectively their oven traps heat and cooks food. This phase allows them to make adjustments to improve insulation, maximize heat retention, or enhance functionality.