Help!!! I'm doing a science fair project on the effects of the sun's ultra violet rays on the human skin. If anyone has any ideas or advice for me it would be...
We are thinking of doing a science project ( 2nd grade/4th Grade ) where we change the color of carnations by putting them into different food colorings. I...
... the ... First of all, make sure you use white carnations! As far as I know, there is no scientific name for the colour change. It happens simply because...
Hey guys, I just joined. I just wanna tell you that I'm available for homework help in most areas of grade school or high school. You can ask me any questions...
hi, can anyone on this group answer this question or provide web links that help me in finding the answer to "what soil or material plants grow best in?" i am...
... There isn't really an answer to this - the growth of various types of plants depends on the acidity or alkalinity of soil and the presence of fertilisers...
go to yahoo n searc "best soil used for plants" n the first site that comez up has ur answer =)..okie bye bye ... Do you Yahoo!? Yahoo! Mail Plus - Powerful....
ok guys, i have two very simple questions that me and a friend are fighting about. 1. what freezes faster, warm water or cold water? 2. If you go to the moon...
... Under many conditions, hot water. This is called the Mpemba effect and there is a full discussion of it at: http://www.weburbia.com/physics/hot_water.html...
How sophisticated does this blimp need to be? Does it need to be steerable, or controllable in any way? If it just needs to shoot across the room (or where...
My daughter, who is in kindergarten, is doing a science project on Why the water wiggle moves. The thing is, I've been through pages and pages of product...
If you had a lil cup with some water in it and put your finger in it What happens is the mass of the cup can only hold so much water So by putting your finger...
If you had a lil cup with some water in it and put your finger in it What happens is the mass of the cup can only hold so much water So by putting your finger...
... It is not easy to explain this to someone who is very young. The hose moves forward because there is a jet of water moving in the opposite direction. It...
I'm having a slight problem figuring this one out -- otherwise, I guess I wouldn't be asking, would I? :-) I have two equations: A > eV = .5mv2 B > evB =...
... guess ... This is e/m determined by measuring the diameter of an electron path in a magnetic field (a) is energy eV= mv^2/2 (b) is centripetal force Bev...
... power ... In a switch more power supply, the mains supply is rectified directly to produce a high-voltage raw DC supply (400V in the UK, 150V in the US)....
Thanks so incredibly, very much -- I kept getting those lousy V and v's mixed up. Should have changed one of them to something else to work it out, but I...
Hi, i am one of the new members i am Pakistani. i just wanted to know what is the principle on which this hovercraft works. As far as i know it can be 1....
I just wanted to thank you guys for the water wiggle advice. My daughter actually got it. she also got into newtons law (which for a 6 year old isn't bad at...
from all of these three liquids what has the most weight? cooking oil,soda,and water and wat substances in each make them lighter weight or heavier weight than...
Hi! Is it possible to create a vacuum (like in a jar - preferably without having to use a vacuum pump)to create the same PSI's and pressures as the different ...
