States of Matter

GrezH Says:

Dec 7, 2011 - If a gas "can escape its container," it is not being contained, so it's not really in a container! Due to differing densities, gases will show layering when mixed together, but pure carbon dioxide will not sink to the bottom of a container, it will completely fill it. All liquids are condensed gases, but they show different physical properties, which is why they're called liquids.

GrezH Says:

Dec 7, 2011 - Sorry, but if "light" gases move "only" up, and "heavy" gases move "only" down, we should not be able to breathe in oxygen while standing on earth. It would have moved up and left layers of "heavier" gases (such as carbon dioxide) just above the surface.

MrNativeDancer Says:

Dec 9, 2011 - Exactly if trees stop making oxygen we all die lol your right! Wind blows oxygen,and mixes it with other dense particles slowing and even preventing it from rising, for example water is Oxygen mixed with Hydrogen, both gasses rise but when mixed become heavy thus sinking back to earth as water. Thats heavy you know you try carrying a bucket full. But when gasses seperate and become pure and light weight they move only upwards until contaminated so to speak hard to explain here though.

GrezH Says:

Dec 11, 2011 - Interestingly, a water molecule is one atom of oxygen (mass 16u) joined to 2 atoms of hydrogen (mass 1u each) so has an overall mass of 18u. However, a pure oxygen molecule containing 2 oxygen atoms has a mass of 32u. This means that oxygen molecules are heavier than water molecules. It's the forces between them that cause the change from solid to liquid to gas, and also their density.

MrNativeDancer Says:

Dec 11, 2011 - Lol your confusing me now, in another post you said we would not be able to breath if lighter gass move up because oxygen would all go up, now your saying its heavier then "quote" water? I have totally lost the plot haha So are you saying Oxygen is a light gas or a heavy gas? I may of miss read or miss understood what your trying to say?

trumanpugh614 Says:

Dec 28, 2011 - This video is a favorite on Malawi

trinitygeorgiaherpe Says:

Jan 9, 2012 - brilliant video guys this will be great for teachers as there knowledge for kids is a bit highly separated . you know kids they can learn a lot from things like this!!

tensonkourin Says:

Jan 14, 2012 - Good video even without sound!

josepena1127 Says:

Jan 16, 2012 - I want this video on my MT810lx phone.

blackIRON989 Says:

Jan 24, 2012 - Were is plasma?

salls877 Says:

Feb 3, 2012 - I Know plasma is not there, and so as something something einstien.. well its enough for now!

themagicmonkeys Says:

Feb 8, 2012 - thanks, this realy helped

priluvsnickjonas Says:

Feb 9, 2012 - What is "Plasma"? I know its a state of matter but what is it?? whats made out of this plasma thing?:?

dikzakfromAQW Says:

Feb 15, 2012 - my teacher use this in school --'

evibull7802 Says:

Feb 19, 2012 - the easiest example of plasma is fire. Even though fire is mainly heat energy and infrared lights, it does have traces of plasma that takes up space and has mass.

uwdawgs98 Says:

Mar 6, 2012 - does any one else see buckyballs in the solid section???

laxmonster4 Says:

Mar 26, 2012 - my teacher used this in school. third grader.....

awsomedude335 Says:

Mar 29, 2012 - state 5: bose einstein condensate

IRONryDOG Says:

Apr 12, 2012 - Me and my friend are learning advanced states of matter right now.

kbmuncher Says:

Apr 18, 2012 - state 6: fermionic condensate

iamgig9876 Says:

May 6, 2012 - wrong state 5 is superfluid. neither fermionic or bosonic condesnates both of them are examples of superfluids. they are like ice and sodium at room temp are of solids

iamgig9876 Says:

May 6, 2012 - plasma is a gas with a very big positive charge formed when electrons are taken away from atoms

Ricajard102 Says:

May 24, 2012 - Plasma is found on Earth.

ItsEvenBetter Says:

May 30, 2012 - whatabout Liquid Crystal?