We are searching for an easy science experiment for an 8yr old to do for a demonstration.  Any ideas?
86431
The old potato powered lightbulb.
55007
try browse the net: all-science-fair-projects.com
124890
This site lists some interesting science project ideas...\nyou can modify them to make them more or less complicated depending on your grade/age.\nhttp://school.discovery.com/sciencefaircentral/scifairstudio/ideas.html#plants\nGood luck on your project!
511411
something that would show the different properties of electricity. its easy to do, doesn't require a lot of time, and you can look up a million things relating to it on the internet
387233
All of these seem to have good starts for ideas.  You should be able to find plenty of good projects that you'll be able to work on prior to your science fair,\n\nhttp://yahooligans.yahoo.com/Science_and_Nature/Experiments_and_Activities/Science_Fairs/\nhttp://www.ipl.org/div/kidspace/projectguide/\nhttp://school.discovery.com/sciencefaircentral/\nhttp://www.scifair.org/\nhttp://www.cdli.ca/sciencefairs/\nhttp://www.isd77.k12.mn.us/resources/cf/ideas.html\nhttp://staff.washington.edu/chudler/fair.html\n\nGood Luck
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!!!
164254
The following really fun and interesting demonstration that is easy to set up:\n-This experiment should be performed outside as it creates quite a mess.  But it's worth it!\n-You will need  roll of Mentos brand mints, and a bottle of soda pop.\n-Roll a piece of paper into a tube, and put the Mentos in it (unless you have a flask/large test tube that the mints will fit in.  Trying to drop the mints in one by one will not work, the whole roll needs to go in nearly at once.\n-Open the soda bottle, line up your roll of paper with the mouth of the bottle, and drop in all of the mints.\n-You'll get a large eruption of soda!  I would suggest the person who drops the mints wear a poncho, or some type of protection against the fountain of soda that will ensue.\nThis website has an explanation of why the reaction occurs the way it does:\nhttp://www.stevespanglerscience.com/experiment/00000109\nIf you are going for something flashier (but much much more dangerous) my chemistry professor used to do the thermite reaction, that was always popular.\nHope this is helpful!  :-)
875072
Here's an interesting experiment.
709848
The following link has some good ideas for different projects.  \nhttp://www.all-science-fair-projects.com/category0.html\n\nAlso, the following link might help you set up a science fair display board if you have to have one.\nhttp://www.sciencebuddies.org/mentoring/project_display_board.shtml\n\nAn easy, but unique, project for a science fair entry is to test different types of materials for fire resistance.  My daughter used wool, cotton, satin, silk, rayon, nylon, and polyester.  All that is really needed for the experiment is the different materials and a candle with a small flame.  Make sure that you make your science board really neat and legible and clearly state your hypothesis and your observations.  Then, write a conclusion about what you learned from your experiment and whether or not your experiment proved your hypothesis.  Good luck!
201736
For sure www.scientificsonline.com. I found it to be a very fun and curious web site! Items ranging from inexpensive to really pricey.  But alas,...they have a Clearance section!!  Another one I happened upon is www.scienceartandmore.com.  They offer a vast array of items listed by category.  Simple, laid back.  Just depends on what peaks your interest and/or need.  Definitely reasonably inexpensive to some being a bit more high dollar.  Just surf the internet on science toys and you will no doubt find the web site/s that will indeed tickle your fancy.  Have fun!
850813
Science Fair Projects\n\nSelecting the Subject\n\n•Hundreds of free science fair projects are categorized under the following topics. \n\nhttp://www.freesciencefairproject.com/\n\nhttp://www.scienceproject.com/\n\nhttp://www.ipl.org/div/projectguide/\n\nhttp://www.all-science-fair-projects.com/\n\nhttp://www.energyquest.ca.gov/projects/index.html\n\nhttp://collaboratory.nunet.net/timber/scifair/2proj.htm\n\nhttp://www.ipl.org/div/kidspace/projectguide/\n\nhttp://www.niles-hs.k12.il.us/jacnau/IJAS/\n\nhttp://www.plymouthschools.com/Science/scifair/scicover.htm\n\nScience Fair Project Resource Guides\n\nhttp://www.sciencebuddies.org/\n\nhttp://www.usc.edu/CSSF/Resources/GettingStarted.html\n\nhttp://www.hallbar.com/sciencecenter.html\n\nhttp://www.sciencenewsforkids.org/\n\nhttp://www.selah.k12.wa.us/SOAR/SciProj2004/index.htm\n\nhttp://www.kathimitchell.com/cells.html\n\nhttp://www.reacheverychild.com/science_fair.html\n\nhttp://www.picadome.fcps.net/lab/sci_fair/science_fair.htm\n\nGood luck.\n\nKevin, Liverpool, England.
784076
Hello Maggie,\n\nDon't worry: the egg drop project is a classic for science teachers, and, therefore, there are a lot of solutions out there on the web. Check out the following site, you'll find all the answers you need, and more: http://users.adelphia.net/~jberger5/eggdrop.html
815673
OK I'm cheating - I put this answer up a little while ago.\n\nA quick and dirty idea for a physics project would be one based on electromagnetism. Without knowing what grade you're targeting, a simple one that has a fair amount of pizzazz is to build a gauss rifle. Checkout http://sci-toys.com/scitoys/scitoys/magnets/gauss.html\n\nThe sci-toys site has some other pretty cool stuff that you might find useful as well.\n\nFor a more advanced example, you can make a small rail gun that applies similar principles but can have a much larger kick. Just do a search on "rail gun experiment".\n\nEnjoy!!
865828
The following link has some good ideas for different projects. \nhttp://www.all-science-fair-projects.com/category0.html\n\nAlso, the following link might help you set up a science fair display board if you have to have one.\nhttp://www.sciencebuddies.org/mentoring/...\n\nA good elementary science fair project is testing the density of various liquids.  All you need is a tall clear glass or vase and various liquids such as... dishwashing detergent, mineral oil, corn syrup, olive oil, water (dyed blue), molasses, or corn oil.  Use at least five different liquids (of different colors... makes the project more attractive) and slowly pour them into the container.  Also, perform the experiment more than once adding the liquids in different orders and note your results.  This project is easy, but it is also very educational and helps to teach the basic concept of density.
789664
I suggest this:\n\nShow your friend a water drop,\nlets him imagine that this drop is made of smaller, smaller, smaller water drops,\ntake some peas (uncooked) as examples.\n\n(This would be water molecules)\n\nExplain, that water under room temperature is liquid,\nexplain him with the peas that this means that the water droplets\ncan move free around, they can bounce against each other \n\n(this would be molecules behaving on a certain kinetic energy level)\n\nbut when it gets cold than they start to stick to each other form something called a crystal.\n\n(This would be phase-transition between liquid and crystalline state and the work of the van der Waal'sche force. )\n\nYou can show that by gluing the peas together or use a toothpick to stick them together.\n\nWhy they are all to different: because they have so much different possibilities to stick together and form all this different snowflakes.\n\nAnd you can prove that you are right by showing him that a snowflake melts down into a water drop.\n\n(In fact they can only form certain three dimensional structures but he will learn later. If you develop this story over the years you end up in physics/chemistry and chaos theory.)\n\nHave fun ! There is nothing more interesting to see how a child starts to understand the world and you can be apart of it.\n\nThe real explanation you will find here:
1183258
I have got some sites for science projects on volcanoes.\n\nhttp://www.all-science-fair-projects.com/project815_39.html\n\nThis is another project for making a volcano with a purchased kit.\n\nhttp://www.hobbytron.com/make-volcano-model-science-project-experiment.html\n\nThis is another volcano science project.\n\nhttp://www.scienceproject.com/projects/intro/primary/PX001.asp
73023
A classic, but great visual experiment is sucking a hard boiled egg into an erlenmyer flask.  It is done by using the principles of the kinetic theory of matter.  \nAnother cool project might be doing something with dry ice.  Find a place that you can get dry ice and do fun stuff with it, like create smoke, put bubble solution in water and then drop in dry ice to make bubbles that, when you pop, let out white smoke.\n\nAnother idea might be to do some cool colorful reactions.  Make some dye molecules or something.\n\nHope one of these ideas works for you.