say ur making a model house how do u put circuits in the house how do u make ur own circuits??? please help!
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I would probably use Light Emiting Diodes connected to a low voltage dc source using very small gauge twin-lead wire.
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Check http://www.howstuffworks.com\nUltimate guide!
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tips about building your own RC helicopter?\nREFER\n       http://www.angelfire.com/blues/heli_project/\nhere in this site all have been explaned well and models have been shown
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I did one.  However, how much time do you have to complete it?\n\nIn one of my projects, my mom bought seeds from the store and we planted them in two plant pots.  One was placed in a corner of the living room where lighting was not to bright and non at night.  The second pot was placed by the kitchen window (choose the window where sun light comes thru to your home the most) and during the night, we lit a plant light so that the pot received constant light.  \n\nBy the end of the month, I compared the two pots and what/how the plants grew.  Guess what happened?  To find out, do the project.
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No home works here Please!\nYou should ask conceptual problems
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http://www.cadsoftusa.com/\n\nIt's free and supports small designs.\n\nTo make your own PCB, you must use a laser jet printer on good quality photo paper, transfer your printing like an iron-on transfer to your copper-clad board, use HOT water to slowly peel away the paper with the trace still on your board, use etchant and viola!! You now have a pro board you did yourself.\n\nYou can find this in better detail on the web, just search.
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This link contains a step by step guide to building your own subwoofer. Hope it helps..\n\n\nhttp://homepage.ntlworld.com/nigel.gough/sub.htm
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go to library and study your circuits.  do your own homework.
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Great site enrique. Thanks\nI've liked trading at American science & supply.\n\nI guess Cold wants some suggestions and sources for an exhibition he can do from scratch.\n\nYou can get dowels & styrofoam spheres at any Michaels, hobby lobby or walmart.  Many others will be getting the same supplies and making models of a few molecules.\n\nHowever, you can make the models enteresting and get extra points because this is a politically hot topic.  Model the sucrose and water molecules on one side.  Model ethanol and carbon dioxide on the other side.  Explain the process is done through fermentation and decorate the exhibit with ears of corn.\n\nSince I am fond of math more than electronics, I would make an electrical exhibition that displays boulean logic.  Two switches wired in parallel to a light is a logical OR.  Wired in series it is a logical AND.  A pair of 2-way switches creates a logical NAND.
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I don't know if this will help too much but I have an idea for the mail carrier (what a good teacher you will be. You didn't say mailman!) I got a bunch of stickers with houses. I cut out 10 pieces of construction paper (all the same size) and put a sticker on each one. I got some tiny envelopes at Office Depot. I then used a label maker to make an address for each house and each envelope. I laminated the houses. The child could than match the envelopes to the houses with the same address. If I think of something else I'll come back. Good luck!
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go to radioshack...they sell basic instruction manuals, circuits and all the bits you'll need
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Here's a site with alot of different ideas and difficulty levels with instructions.  Maybe you can find something here.\n\nOr you can tell us more about what you are wanting to do and what you like and we might be more helpful on here.\n\nhttp://www.all-science-fair-projects.com/
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Start with a multi-cut-out prototype & tape.  Once you've figured the sizes for your parts, disassemble and use a prototype 1-piece pattern with tabs & slots to hold it together.  Work it till it works  :-)
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reseach word electrical diagrams. its for you do it yourselfers
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Did this way back in Boy Scouts....Relatively easy...just need to build 2 electromagnets and a series circuit..... I'll see if instructions are online.\nhttp://www.terrax.org/comm/morsecode/buzzer2.aspx\nhttp://chss3.montclair.edu/~pererat/perbuild.htm\nthe second one is similar to what I built
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http://educate-yourself.org/fe/fejoewatercell.shtml\nI'm unsure of anything that describes how to really make one.\nThis site tries, but it's rather goofy to follow. Maybe you'll have better luck that I would.
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a drawbridge or a circuit??