1.
How to build a model atom.
Q: I need to make a 3 dimensional model of an atom. Can you help with some ideas of constructing this. Thanks -Troy Reynolds Jenkins Middle School, Palatka, ...
2.
Exhaled oxygen
Yup, we usually exhale at least half of the oxygen we inhale. It depends of course on if we have been exercising, and whether or not we have held our ...
3.
tennis racquet speed
Aug 14, 2006 ... A: I guess by ’how hard’ you’re asking what the racquet speed has to be when it hits the ball. I can give a minimum estimate. ...
4.
Stuff about Space : Earth & Moon
Stuff about Space : Earth & Moon ... The Direction of Earth’s Rotation and Its Tilt · Magnets floating in the Earth’s Field · Is Earth Rotating around Sun ...
5.
mixtures and pure substances
Mar 4, 2007 ... So copper is a pure substance in any form (only copper atoms). Liquid water is a pure substance (all H2O molecules). Table salt is a pure ...
6.
Picture of an atom
Jul 21, 2006 ... An atom has two main parts: A very tiny nucleus and the electrons that surround it. A very common picture that is often shown looks like the ...
7.
Still can't find a program near you?
Get together with other schools in your area and have a program come through for a "tour" of your area. With enough schools chipping in, you should have no ...
8.
Picture of Dalton’s Atomic Model
Jul 21, 2006 ... Q: Are there any pictures of Dalton’s atomic model? I can’t seem to find any and am having a hard time drawing one. Thanks! -Gina (age 13) ...
9.
Picture of Dalton’s Atomic Model
Jul 21, 2006 ... Q: Are there any pictures of Dalton’s atomic model? I can’t seem to find any and am having a hard time drawing one. Thanks! -Gina (age 13) ...
10.
Uses and dangers of radioactive elements
Sep 14, 2008 ... Henri Becquerel first found out about radioactive elements late in the 19th century by placing some photograpic film under uranium salts. ...
