Technology & Design
Key Stage 3
A Suggested Year 9-10
Project
RA Moffatt WELB
RA Moffatt
WELB.
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.
Aroma Fan
Design Opportunities:
a)
Show using concept sketches three alternative designs
for an attractive box top
b)
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?
d)
Explain how the electronics circuit works
e)
Show using scrap sketches how the solar motor and battery are to be secured?
f)
Name suitable materials for the box sides and base?
g)
State a suitable protective finish for this project?
The problem is to
design a means of
holding petals that
are used to absorb
the aroma oils
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