Can anyone tell me how to make a simple electric motor for the kids age 6?
536514
You would certainly need an electrically conductive medium (in the form of a wire). Also have two fixed magnets (fridge magnets will do). Will also need batteries (or if you are more adventurous, an array of oranges connected by conductive terminals, the citric acid in the oranges will generate a current). The wire would have to be quite long and wrap around something (e.g. the foam you mentioned) and the ends brush against terminals connected to the battery.\n\nThe looped wire would have to be between the two fixed magnets. When a current from the battery passes through the wire, a force would be applied depending on direction of the magnetic field (North to South). This is due to the faraday effect and the net effect should cause the loop of wire to spin.\n\nObviously you would have to fix the foam to some kind of axle to spin freely.
90751
Take some balloons and blow them up and watch them slowly lose the air in side over a few days.  Then explain what Osmosis is.   : )   While you have the balloons out fill some with helium and show the kids how they can make their voices change.  Have your video camera ready this will be a hoot!!!
1085081
I was a preschool teacher for a few years\nRead them a book about wind,\n1. then make wind socks\n2. have them paint by making their own wind.  Give them straws and have them blow the paint\n3. Make kites\n4. give them grocery bags (plastic) and have them "catch wind"  they will run with the bag, the bag will fill up with air.\n5. make a wind chime.  Use the long tube pasta, or ask the parents to bring in items that could be used for a wind chime.\n6. blow bubbles\n7. make paper air planes and take them outside and let the wind blow them.\n8.  throw grass in the air, see which way it blows.
786312
Since you're dealing with a variable energy source (wind), you're best bet is to build a DC generator...\n\nIs this a science progect?\n\nA DC Generator is the same machine as a DC motor...  So if you're building something for your home, then just use a DC motor and a simple belt an pulley to reduce the rotational resistance (or load) on the blades, so a slower wind can be used...\n\nFor a Science project...  \nBuid three loops of wire and seperate them 60° on the rotor of the wind mill.  Place a magnet on either side. north to south\nSet up "brushes" (chunks of graphite like pencil lead) on either side so that as the rotor spins with the wind, the same side is going to the same terminal + or - no matter which side of the coil it is.\n\nHave fun with it...
185600
How to make a simple Van de Graaff Generator\n\nITEMS:\nPlastic Tupperware (microwave oven safe)\nSome wires\nNail\nSmall DC motor \nPiece of PVC pipe (approx. 3.8 cm in diameter)\nBroad rubber band \nWooden skewer\nPlastic bag\nRoll of tape\nSoft drink can\nMineral water bottle\n2 3volt batteries\nBattery holder (optional)\n\nPutting it together:\n1) Cut a hole in the middle of the bottom of the plastic container.\n2) Glue/tape the motor to the lid, making sure the shaft is at the centre of the lid.\n3) Using a hot nail (can be heated at the stove), make two holes near each other for the wires of the motor\n4) Thread the wires through the two holes (the two wires will connect to the batteries)\n5) Cover the container with the lid. (Inverted container in this case)\n6)Make another hole, perpendicular the motor shaft\n7) Thread another wire through(this will be your ground wire) \n8) Make the appropriate measurements for cutting your PVC pipe length and grooves(where the stick will rest)\n9) To make the roller, just stick tape to your stick and go round and round and round.\n10) Place the PCV tube on the lid, perpendicular to the motor. \n11) Thread the stick thru the rubber band and place it in the grooves.\n12) Make sure both rollers are parallel to each other when you thread the bottom of the band to the other "roller"\n13) Cut the top of the soft drink can.\n14) Cut both ends of the mineral water bottle off, making sure that it isn’t shorter than the PVC pipe.\n15) Make a hole near the top of the bottle.\n16) Strip some wire, twist it, and poke it through the hole.\n17) Electrically connect the copper wire to the soft drink can.\n18) Tape everything in place.\n\nWhen you put everything together, you get a crude Van de Graaff generator. Make sure the combs (end of wires) are near the belt and rollers. Make sure that when you run it, the belt doesn't slip off. If it does, make sure both rollers are parallel to each other. Also, try to superglue the motor to the Tupperware lid.\n\nWhen you first run it try taping strips of tissue paper to the can. It should start to rise seconds after the batteries are connected. If this fails, put your finger near one of the tissue strips. The strip should be attracted to your finger.\n\nPlaces with high humidity can be a real problem for electrostatic experiments. Try working in an air conditioned room to help overcome the problem.\n\nThe last two links are the best ones and both include detailed step by step process with pictures.
254384
Tell them to bring in working models of "alternate forms of energy".  It might be a little tricky because some of the stuff is flamable.....but I remember having this fair in third grade and it was a great learning experience.  One kid brought in a giant 5 gallon jar half full of pig crap and then showed how it emits gas that could then be used in a combustion engine.  Amazing.  But think...obviously solar...there's got to be the electric type motors....models of combustion engines are going to come in using the corn oil approach etc.
221571
Very Nobel interest. If you can build it then let me know. Here are the tips from me. Use FM band to for the controls, if you can have a digital control system then you can operate that with a high and low pulse from the ground. And if its a toy plane then there shouldn't be more then 3 or 4 controls which should be easier to design. contact me let me know the further update on your this project and any assistance.
22886
I found a great resource from Non-Profit Guides.org...\nSee below.\n\nIt contains instructions and samples, enjoy!
145039
The best project will be one that has some interest to the 5th grader. So my granddaughter likes animals. But my youngest boy likes photography. So a pinhole camera would bore my granddaughter but would have caught the interest of my son.\n\nThat being said... Here's an easy one. Go to a store and find some cheap analog clocks (clocks with hands) that run on a single AA battery. Then go to Radio Shack and get some battery holders and some "aligator clip leads" -- short wires with clips on either side. And get a bunch of different brand batteries of different sizes (if you are trying to get by simply, use only AA batteries and then you just need the clocks and the batteries).\n\nTake off the battery covers and hook up the battery holders to the clocks with the clipleads (unless you are only using AA batteries). Then put batteries in and see how long it takes for the clocks to run down. This may take a long time. If you are short on time, try this. Get a flashlight bulb at radio shack and put it across the battery with the clock. So this way the battery is running the clock and the flashlight bulb at the same time. Note the time on the the clock and check it every day to see when the clock stops. You can graph the results easily.\n\nQuestions:\nWhat lasts longer, a AA, a C, or a D battery?\nWhat brand of battery lasts longer?\nWhat lasts longer, a standard carbon-zinc battery or an alkaline battery? What is the cost difference per unit? Per run time?\n\nA little research on the internet about how batteries are built, and the different technologies (carbon-zinc, alkaline, nicad, NiMh, lithium, lead-acid) and you have a great project.
370881
try this website http://www.howstuffworks.com/search.php?search=electrical%20motors%20and%20generators&ref=hpaw&page_ref=http://www.howstuffworks.com/
1121687
Have the kids pick up their own toys and put them away.  Make a game of it, set a timer, or sing songs while you do this.
745227
Generally simple machines include levers, wheels and axles, belts and pulleys, gears, and inclined planes.   This site should help you.  Best of luck with it.
752801
Check out the projects on this website\nhttp://scienceclub.org/kidproj1.html
957963
Have a look at this:\n\nhttp://www.bbc.co.uk/schools/scienceclips/ages/7_8/magnets_springs.shtml\n\nHope the link works, if it doesn't try the first bit 'bbc.co.uk/schools' and look around for links.
695795
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
361899
Buy a kit.  They sell the solid fuel "engines" at any hobby store.  If you're under 18 you might need an adult's permission, and launch responsibly.\n\nOtherwise, it's loads of fun.
896989
You can make a ball bearing launcher:\nhttp://my.execpc.com/~rhoadley/maglnch.htm\n\nYou can make your own levitating MagLev train:\nhttp://my.execpc.com/~rhoadley/magtrain.htm\n\nOther info is available here:\nhttp://www.kn.sbc.com/wired/fil/pages/listmagnetsan1.html