does any one know how to make a mideavl castle with a moat that has real water?
484708
1BE1BHRE1GHTAD1BTRA5EDHBRTD15F1NB1F1NF
225104
Lots of regular gravel and sand of different sized granuels. They use finer material thedeeper in the leech pit you go until you will eventually get clean water out the other side. (Hopefully)
954398
you could do a project of 'rain harvesting'\nconstruct a house,surrounded by a small canal -shaped tank which can hold water when it rains use this water (after purification)for various odd uses.\nit works if you use small plastic tubes as canals\n    OR\n a sugarcane industry is a very good idea(i got a prize for this.)\nbut you need to make crusher,purifier,separator,and drier made of steel or iron.
657861
make a mini lava-lamp-like thingy.  get a cup, fill it about 3/4 full.  add food coloring, if u want.  pour a layer of oil about a centimeter thick.  then, pour salt, sugar, or sand, or all three on top of the oil.  it'll go up and down for a while, then the solid will settle at the bottom and the oil float stay on top.
255609
Visit this site :\nhttp://www.himeji-castle.gr.jp/
381672
if you are trying to build a model - i would recommend either a playdo type creation or if you wanted to be fancy - use a jello mold.\n\nJello mold you make the mini components first and let them harden.  then put them in place in and outside of your 'membrane' and fill in with a clear jello (knox).  The clear represents your axon and cell membrane with your multicolored preformed pieces acting as your pump, na, and K+\n\nhave fun!
107612
This is potentially a massive and complex task.\nSearch the web for "computational fluid dynamics".  Here's what I found in a couple of minutes:\nThe 1st ref. below has some interesting simulation ideas (but unfortunately for a liquid, not air).\nThe next discusses things you should know before even deciding whether to do this.\nThe last gives links to software downloads.
371610
try this site http://www.irrigationtutorials.com/
1117364
WEll... I was going to go to the trouble of giving you a real answer.   But since I see its already been answered I'll just say... \n\nDo it by trial... pour one milk jug of water into it at a time.\n\nYou could use milk too but that would be expensive and smell horrible
86878
http://www.dickblick.com/lessonplans/castles/\n\nTell your teacher you need help with spelling.
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!!!
604279
teach them how to build a giant sand castle and while doing so not only are you teaching them architecture but your letting them be really creative, and help them understand the beach better!\nI don't know why i answered this one seriously, i could have made so many rude comments... huh...
221839
http://images.search.yahoo.com/search/images?_adv_prop=images&imgsz=all&imgc=&vf=all&va=medieval+castles&fr=FP-tab-web-t&ei=UTF-8\n\nhttp://www.netserf.org/Architecture/Castles/\n\nhttp://dir.yahoo.com/Arts/Design_Arts/Architecture/Buildings_and_Structures/Castles\n\nRay
855046
I've "witched" water before, but it is a questionable method.  I got 2 two foot long bronze brazing wires from a welder, bent them into equal sized "L"s....not everybody can do it, but you can try it over municipal water lines to see if it works for you.  I am a scientific person generally, but it does work...there is something to it.  be careful to hold them lose but level...go back and forth different directions...if you get a hit, try it from a different direction...don't let your sub-conscience mind take over and try to fool you.  there are times for me that I could not stop the crossing of the wires the indication was so strong.  The method is questionable because there is no depth meter on the wires and it could be anything, like differential density of the sub ground causing it...it could be water or something else.  I have heard of "witching" graves because of the differential density I suppose.
896343
fill it with water and jump in
985762
You can make a tornado tube, and this website tells you exactly how to do it:\nhttp://ns.isp.nsc.ru/l24/mamont/climate/tornado.htm
702932
try some physics ! fill a glass with water til its rim , put apiece of paper flat on top of water touching the rim and turn it upside down water shouldn't spell , if in doubt do it over the sink.\nyou may put enemy inside !