Wind Generator Kit for children?
603104
I don't know what country you are from so I will answer for the UK ... Maplin Electronics have cheap (no soldering) wind power kits.\n\nIf you are from another country find a hobby electronics store and ask them about kits like this - they are very common items.\n\nGood luck
325624
You might want to get some help pulling a windmill up, they can weigh several hundred pounds.\n\nSERiously though, try this website that also has a howto forum \n\nhttp://www.otherpower.com/otherpower_wind.html
631220
I'm not sure hinged vanes would work well because rigid vanes would catch all available wind from any direction.  My recollection was that the 55 gallon drum was set upright and split vertically into two equal halves that were joined nearly edge-to-edge to a central rotating shaft (like cups of an anemometer that measures wind velocity).  I was driving by and have no idea how much power it delivered; but on very windy days it was a blur (there may have been more than two vanes).  From a distance it looked like it drove a car-type generator at the bottom of the stand.  Good luck.
385490
Yes wind is definitely a renewable energy source. Take a look at the link provided for more info on RES and other examples.
658354
http://www.lpl.arizona.edu/~rhill/conversion/windspd.htm\n\nanytime :]
862156
Take a plywood board. Fix a rectangular (50x12 mm) wooden rod of about 600 mm length with it so that when board is horizontally placed rod is vertical.\nMake a hole in vertical rod at about 25 mm below top. Fix a small ball or roller bearing in it. Fix a small rod through bearing and mount car radiator fan blade on one side and a small tape recorder pulley on other side of it. On the side of above pulley (used in tape recorder) make a fixing arrangement (with vertical rod) below above pulley and mount a tape recorder motor on it.\nJoin pulley of motor and pulley on which radiator fan blade is fixed using belt used in tape recorder drive. Since tape recorder motor is a DC motor it acts a generator also.\nConnect wires of motor (generator) to a voltmeter/ lamp.\nPortable wind mill is ready. This is a practical working model of wind mill. It has been displayed in science exhibition.\n\nAs regards increase in output based on number of blades, you are aware that wind mill changes kinetic energy of wind into electrical energy. Kinetic energy of wind depends on velocity of wind and contact area of blades. So try and find out truth for yourself. You have to work to learn.
752801
Check out the projects on this website\nhttp://scienceclub.org/kidproj1.html
865400
Get some power generators.
783787
Try the link below.  Its geared towards kids 6 - 11 years of age.
961363
You can make one on Amazon.com - they have more than books, they also list toys and electronics.\n\nOR you can create your own website for free at tripod.com . They have templates to help you.
929271
I did a google and there are different models, so I'm not sure which one you need info about. But, the photo of the model at the site below looks pretty simple--as if you merely hold it in the path of the airflow, and read the speed of the wind. It says the model is intended for students.
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.
245204
Download World Wind 1.3 from www.nasa.gov
588890
try this site....www.kidscandoit.com   or   www.colapublib.org.
974300
try something that deals with solar power. it'll show him that there's alternative fuel sources out there. maybe one day he'll become leader of the world by creating something great. hmm... when i was his age, all i did was cut a tree and reported that you can tell how old the tree was by counting the rings. now i'm a nobody.
489620
http://www.tryscience.org/\n\nhttp://scienceclub.org/kidproj1.html\n\nhttp://www.energyquest.ca.gov/projects/index.html\n\nhttp://pbskids.org/zoom/activities/sci/
1135291
This site has build your own deck kits:\nhttp://www.roarockit.com/