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Key Stage 3

Technology & Design. Key Stage 3. A Suggested Year 9-10 Project. Design. Aroma Fan. Electronic Systems. RA Moffatt WELB. RA Moffatt WELB. Aroma Fan. Learning Opportunities: An introduction to the Potential Divider using a thermistor as a temperature sensor;

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Key Stage 3

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  1. Technology & Design Key Stage 3 A Suggested Year 9-10 Project Design Aroma Fan Electronic Systems RA Moffatt WELB RA Moffatt WELB.

  2. Aroma Fan Learning Opportunities: An introduction to the Potential Divider using a thermistor as a temperature sensor; To develop design and manufacturing skills and Techniques; To develop understanding of electronic systems design. Activity Description: Theory: The study of potential dividers / transistors / thermistor / capacitors. Manufacture: To manufacture the box from given dimensions; Applied Design: to design the top for the Aroma Fan container. Electronics

  3. Aroma Fan • Design Opportunities: • Show using concept sketches three alternative designs • for an attractive box top • Explain using graphics how the platform for the fan is held in place? • c) Draw the electronic circuit for this project in Live Wire and explain • how it works? • Explain how the electronics circuit works • Show using scrap sketches how the solar motor and battery are to be secured? • Name suitable materials for the box sides and base? • State a suitable protective finish for this project? Electronics

  4. Concept Sketches The problem is to design a means of holding petals that are used to absorb the aroma oils

  5. Concept Sketches

  6. Suggested Key Stage 3 Project:Aroma Fan Ideas for the box top Butterfly / Ladybird Motor ‘on’ for a set time, fan blows air through scented petals into the room

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