how to make the best a water rocket science's project ?
350827
Lemonade bottle (fins will help) and a water/air ratio of 1/3 : 2/3 makes a good starting point. The rest is good old trial and error!
109628
I did something similar to this when I was in 3rd grade or so. What I did was take cheese cloth (can be bought at walmart in craft section and many craft stores) and wrap it around the head while wet with a flour and water paste. Just secure the bottom with a rubber band, the cheese cloth will create a canvis like surface on which you can use paint or markers. After that I got my brother to spray paint the bottle white and when the heas was dry I hot glued it onto the neck of the bottle letting the end of the fabric hang down inside. For clothes I used felt you can buy at craft shops that is already sticky on the back, but for yours I'd say you could just use markers on the spray painted parts because he wouldnt have really had cloth clothes if he's in a space suit. \n\nI'd sugest drawing a square on the head as a face window and drawing the face inside that. You could also go to the hardware store and get some small riged tubes usually used to secure wire to go from the back of the head to the bottom of the "suit" of the spaceman. \n\nIt would be neat to make space boots out of the bottom of two smaller water bottles glued onto the bottom of the larger bottle and painted white with the rest of the bottle. Good luck!
450016
Hi\nYou can just use a simple plastic water,drink or juice bottle.\n\nIMPORTANT NOTE:your rocket may not work if you use a screw lid.\n\nTo make rocket:\n1 Tape a straw to the side of the bottle:make sure that one end of the straw is within 1-2cm of the top of your bottle\n\nTo make launch pad:\n1 Insert skewer into a round piece of cardboard so that the skewer is standing securely upright.\n\nTo launch rocket:\n1 Insert one of the following fuels:\n   1x crushed alka-selzer tablet and 15ml of water \n   1 teaspoon of baking soda and 40mL of vinegar.\n2 Then put on the lid on as soon as the substance(s) are in the rocket.\n3 Place rocket on launch pad so that the skewer goes through the straw.\n4 watch in amazement as your rocket takes off!
769556
Do not go for the normal, typical projects that wind up at every science fair--the volcano, the planet mobile, etc.  Just do a project on something you are truly interested in.  Anything can be a science fair project:\n\nDoes expensive lipstick last longer than cheap lipstick?\nDo vegetables last longer on the counter or refrigerated?\nWhich hamburger molds first: McDonald's, Burger King's, or Hardee's?\nDo food packages really contain the amount (weight) of food they list on their packaging?\nCan people tell the difference between namebrand vs. generic shampoo, soda, candy, etc?
500012
make a catapult or a trebuchet\nmake a lever\nmake a hydraulic lift ( soda bottle hosing balloon housing for balloon like a box or can, something to lift}
1096154
use a pop bottle quarter fill wth water, and seal with a rubber cork(one with a hole in the middle this is where you put your compressor attachment)  add fins to your bottle just like a real rocket\n\nuse a half pipe as a ramp and angle it a 45 degrees ataach the compressor to the bottle and turn on.  when the air pressure gets high enough the cork will shoot out and the rocket will fly.  try different amounts of water and change the angle
227408
stick of dynamite.\n\nOk, I was just being silly, the other two ideas are good.\nA third way might be to create a whirlpool in the water.  I guess you could consider that a hole as well.
70301
try surfing: all-science-fair-projects.com\nyou select there from different categories..\ni hope you can find one :)
625619
what the heck is a mentos rocket???  Do you put those little breath mint thingies inside a rocket and launch it?  That's weird.  Doesn't sound all that fun to me.\n\nWell, since I'm not sure what that is, I don't have any really good ideas.  \n\nBut here's some links for science fun\n\nhttp://www.funsci.com/texts/index_en.htm\n\nhttp://www.exploratorium.edu/science_explorer/
254639
the best kind of science project is one that you know alot about, you have a quiestion that you want to know, investgations are the best beacause you have a problem that you want to solve and your real mischevis to know the answers. thats what kind of project i think is the best. here is the example i am doing a project over density. my quiestion is why does the object float to the top when co2 is added? i am still working on my answer but that is what i want to know. and my science teacher thinks that investgation projects are the best and i always go to county science fair with investgation projects. that is my opinon about the best science fair project. but what ever you think is the best sweetie.
485319
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.
102428
Try this site. I just looked at it and it looks pretty neat. Going to bookmark it for my grandchildren...\n\n  \n\nRainbow in the bottle? - All Science Fair Projects You can make a rainbow in a bottle. Although visual effects were used to enhance the rain bow, you can create it!! I will post that thread so you can learn ...\nclassroom.all-science-fair-projects.com/ forum/showthread.php?t=1072 - 81k - Cached - Similar pages \n\n21: Rainbow in a Bottle\nWith just the bottom of a clear 2-liter bottle as a containter, it is possible to show that water is capable of separating white light (from a flashlight, for example) into its full spectrum (red, orange, yellow, green, blue, indigo, violet or ROYGBIV, for short).\n\nAdding a mirror makes it possible to make a bright rainbow in reflection-almost** like the real thing-by placing a small mirror at an angle into the container and setting it in a sunny window so that sunlight strikes the mirror. A rainbow (**shape is different) appears above the mirror and can be projected on a piece of white paper or a white wall. (This can also be done with a flashlight, although the effect is much less dramatic.)\n\nMaterials: Bottom of clear 2-liter bottle (cut off about 20 cm. from the bottom), small mirror (edges taped or enclosed), water, white paper or poster board; bright flashlight; small containers (foam, paper, etc.) to hold water, plastic droppers, waxed paper.\n\nSafety: handle glass mirrors carefully: do not use any with cracks or sharp edges\n\nProcedure: \n1. (To show that water can separate white light into colors) Fill bottom of 2-liter bottle almost full of water. One person should shine the flashlight at edge and adjust angle while another person hold a piece of white paper to act as a screen to observe the "rainbow". Keep adjusting to see the widest strip with all the colors.\n\n2. Place a mirror in the container of water. Adjust mirror angle and container position in sunny window until sunlight is on the mirror and rainbow is projected upward. (Although it does not work as well, the effect can also be seen with a bright flashlight. If you need to use the flashlight method, do it in the darkest place available or it may be impossible to see the colors.) Observe colors-order and intensity-as well as shape of "rainbow". In what ways does this differ from a rainbow as seen in the sky? \nNote that this rainbow is in front of the reflector (mirror) and is being projected back towards the Sun. (In a sky rainbow you must stand with your back to the Sun to see the rainbow also.) Perhaps in a sky rainbow, something is reflecting the light back to you as well as splitting it into colors. What could that something be?\n\n2. Can water reflect light? To see that it can, put some water in a bowl and look at it. Can you see your reflection? Can just a tiny drop of water reflect? (Drop water on waxed paper and look for reflections of overhead lights, etc.)\n\nWisconsin Standards:\nPhysical Science: D.4.8 Observe light\nhttp://www.ripon.edu/faculty/nortonm/dailyscience.html
136973
It is a science project
443437
http://www.scienceproject.com/
537936
Use a shoe box.  Tape on some wheels and axles.  Put the balloons inside the box with the base of the balloons taped so all the air will go out the back.  When the air is released it will form a primitive rocket, propelling the box-car across the floor.\n\nI can't say this isn't rocket science, because technically, it is.
978881
A great rocket design using a 2 liter bottle is always fun. You may want to amaze and stun your friends with a new type of rocket. It is a Mento powered one. Take a bottle of Diet Coke. Drill a 1/2 inch hole in its cap. Find a tube, or box that the bottle can stand upside down in. Drop 8 Mint Mentos into the bottle. Place a small piece of tape on the cap so the bottle will not leak. You have to be really really quick. Place the bottle upside down in the standing position. or on an angled ramp. You will be in for a big surprise! In actuality, you can make a great water rocket with a bicycle pump and pvc pipe.
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!!!