Week 4 Objectives:
Objective B: – All building requirements met and checked off in journal
Objective C: – Building completed and brought home
1x NPN transistor
1x 10K Ohm resistor
4x M-F wire
1x M-M wire
already in building:
2 AAA battery pack
Objective A: LDR
Add an LDR circuit onto your breadboard. The LED in this circuit will automatically turn on whenever the LDR is in the dark.
‘N’ in the diagram marks the flat side of the transistor. The LED and LDR plug into M-F wires so that you can position them on your building. Tape or glue them in place once your circuit is tested and working.
Objective B: Building Requirements
Have you met your building requirements yet? Remember that you need 2 Features from each list. Go ahead and finish them up now if you haven’t already.
|Geothermal Heating||Lamp post|
|Solar Water Heating||A Person|
|Green Roof||Porch Light Fixture|
Objective C: Finishing Touches
This is our last week working on this project! Add any other features that you want to your building – you can use extra lights purchased from the amp store, decorate the exterior of your structure with markers, or raid the recycling bin for materials and expand your building. This one is up to you.
NEXT WEEK IS JUNK RACERS!
Leave your building at home and bring junk to class.
Plastic bottles, cardboard tubes, old boxes, soda cans…