How do you make a volcano for a school project (4th grade)?
99133
Well, the way I always did it was to build your model volcano out of usually brown playdoh.  One of the better methods is to take a discarded paper towel cardboard center and glue it to some sort of paper (best more cardboard) then build your volcano around it making sure to keep the hole in th center open.  Pour baking soda into it...take it to school and at the precise moment pour vinegar into the baking soda...I think some people put food coloring into it (bright orange)
755153
start from here:http://en.wikipedia.org/wiki/Volcano\nthan click here:\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBUXpXNyoA;_ylu=X3oDMTE2ZGhvZmh2BGNvbG8DZQRsA1dTMQRwb3MDMQRzZWMDc3IEdnRpZANERlg1XzMw/SIG=19tfhms70/EXP=1163277749/**http%3a//rdre1.yahoo.com/click%3fu=http%3a//www.volcanolive.com/%26y=04D6D45EA8332C5A9E%26i=680%26c=21908%26q=02%255ESSHPM%255BL7sviz%253Fips%257C%7eqpzl6%26e=utf-8%26r=0%26d=wow%7eDFX5-en-us%26n=0IHKK1KQNHA4BU6E%26s=12%26t=%26m=4554E436%26o=01C888B21CE6710E36%26x=052DFE91D28B9E0A83349375261B2BB2A1\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBXHpXNyoA;_ylu=X3oDMTE2aXBvZDkwBGNvbG8DZQRsA1dTMQRwb3MDMwRzZWMDc3IEdnRpZANERlg1XzMw/SIG=12fj2lehe/EXP=1163277749/**http%3a//www.geo.mtu.edu/volcanoes/west.indies/soufriere/govt\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBaXpXNyoA;_ylu=X3oDMTE2bTQybGs2BGNvbG8DZQRsA1dTMQRwb3MDNQRzZWMDc3IEdnRpZANERlg1XzMw/SIG=13154364e/EXP=1163277749/**http%3a//interactive2.usgs.gov/learningweb/explorer/topic_hazards_volcanoes.asp\nhttp://rds.yahoo.com/_ylt=A0geupc15FRFTXQBV3pXNyoA;_ylu=X3oDMTE2MWFla2V2BGNvbG8DZQRsA1dTMQRwb3MDMgRzZWMDc3IEdnRpZANERlg1XzMw/SIG=1aaavi8gn/EXP=1163277749/**http%3a//rdre1.yahoo.com/click%3fu=http%3a//www.volcanolive.com/contents.html%26y=04BF5322B24FA45313%26i=680%26c=15685%26q=02%255ESSHPM%255BL7sviz%253Fips%257C%7eqpzl6%26e=utf-8%26r=1%26d=wow%7eDFX5-en-us%26n=0IHKK1KQNHA4BU6E%26s=12%26t=%26m=4554E436%26o=018610364A2BA0082E%26x=05679277237FEB7DFC07236F0AED3006C9
752801
Check out the projects on this website\nhttp://scienceclub.org/kidproj1.html
563439
Build a solar cell from a couple of thin sheets of copper and some salt water.  It requires a heat source, but with parental supervision it can be done by a 4th grader.  Easy!\n\n(see links below for how it's done)
361573
First mould a volcano with plastercine or play dough.\n\nThen fill it with bicarbonate of soda, baking powder or health salt.\n\nGet some vinegar and then mix it with reddish-orangey (Lava colour) ink or food colouring.\n\nThen pour your coloured mixture with the bicarbonate of soda, baking powder or health salt in the volcano.\n\nHey Presto! The bubbles should start to rise. \n\nWhen Bicarbonate of Soda is mixed with an acid liquid (Vinegar)it releases the gas carbon dioxide (CO2): \n\nNaHCO3     +     H+     ----->     Na+     +     H20     +     CO2\n(soda)         (acid)           (sodium)       (water)        (gas)\n\n^ Above is the word equasion. If you are good at science you might be able to understand this.\n\nI hope I helped you.
978352
A model volcano is always a hit. Or a model of the solar system. For the latter, just string some colored balls on the interior of a shoe box painted black. Pretty simple.
240915
Here is the answer! I leave the use of a calculator to you.\n\nAt a distance of X from the volcano,the dude saw the top at an angle of 37 degrees. Then at a distance of X-1000, he saw the top at 40 degrees. So, the common factor these two measurments have is the height of the mountain, speaking in geometric terms, the opposite of the angles. So you know tan = opposite /adjacent right? Therefore tan 37=(height of volcano)/x and tan 40 = height of volcano/(1000-x). Then, you equate x tan 37= (1000-x) tan 40. Now use your calculator and find the value of X. After that, plug that value into x tan37 = height of volcano. And then tada , you got your height!
886827
My kids use this website to get their science fair ideas http://school.discovery.com/sciencefaircentral/ It has project ideas, tip sheets, step-by-step instructions on basic science fair setup, etc.\n\nGood luck!
727644
you could use play-doh to form it, mixing the colors to get the look you want,,,,,it will harden as it dries,   you also can use a past of flour, salt and add water in to make a dough , then form it also, use food color to color it,,,,,,,as to making it erupt, you can put a dish/glass in it, add baking soda to it, then when you want it to erupt, put in white vinegar,,,,,if your talking about a very simple project,,,,,,,
365576
Modeling clay might work... you can even make your own. \n\nYou also might try using actual rocks and painting them. \n\nRoyal icing is another option - it's very stiff when it dries, and you can color it any shade you like.\n\nYou can cut styrofoam/flower bouquet foam to any shape you like as well.\n\nGood luck!
421484
This website may help, not only does it have a picture, but it has step by step:)\nhttp://www.enchantedlearning.com/crafts/astronomy/solarsystemmodel/\nI would use the foam balls instead of the tag paper. If you need to make it to scale this website might also help:\nhttp://www.exploratorium.edu/ronh/solar_system/index.html
963231
http://www.perfect-science-fair-projects.com/9th-grade-science-fair-projects.html\nthere's some ideas. good luck.
26474
http://www.all-science-fair-projects.com/\n\nOver 500 of them here. And a really cool colorful web site for someone in the 5th grade to enjoy.\n\nCheers
588613
Here's how u can do it:\n\n(Step 1): Take an asbestos sheet of any diameter you like depending upon the size u want to make.\n\n(Step 2): Take a long jar and build a mountain with modelling clay with a hollow(but not very deep) pit.\n\n(Step 3): Leave it in the sun for drying.\n\n(Step 4): Get Ammonium Dichromate (NH4)2Cr2O7 from a chemical shop.\n\n(Step 5): Place a small amount of Ammonium Dichromate into the pit and drop a lighted camphor in the pit. You will see that Ammonium Dichromate increases in its volume, sparks are evolved and a green coloured lava flows out of the pit.\nThis is Chromium Oxide and the reaction can be represented like this:\n(NH4)2Cr2O7 --> Cr2O3 + 4 H2O + N2\n\nNote: Ammonium Dichromate and camphor are both toxic chemicals. Have a teacher around you to help u and keep a bucket of water near u.
1136054
Volcano is the classic answer.  Make a volcano out of clay and add some baking soda, vinegar, and red food coloring for the eruption.  You could use styrofoam balls from walmart or a craft store along with doll rods or straws to make a model of the solar system or an atom.  The links below are to some websites that have samples of some projects you could do.  If you tell me a little more specifically what kind of project you want, I could help more.
159881
Use cardboard, clay, or sugar cubs.  Cardoard would be the easiest.
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.