Science Buddies: "Ask an Expert"

heres a easy question wich i know the answere for, but i need help describing it =P---- Why does the bottle of water when frozen expands?--
i know, beacuse the water becomes solid and theres not much room there..but i need help doing reseacha nd describing it.
thx in advance

and theres no really due date anytime soon, but if we could get this out of the way, the sooner the better

Artem,

Check out the following links. It talks about water and what happens when it frozen. Hope this helps

http://www.physicalgeography.net/fundamentals/8a.html

goodluck,

Hey Artem,

Think about the physical properties of water. The special aspect of water is that when frozen, the water molecules assemble in a pattern that takes up more volume than liquid water. As you can find on the Internet, the density of liquid water is greater than the density of ice.

Another way of explaining it is mathematically. Density = Mass / Volume.
The density of water is 1.00 g/mL while the density of ice is 0.92 g/mL. Given that you have a specimen of water with constant mass M, you can say the following:

1.00 = M / V(of water)
0.92 = M / V(of ice)

V(of water) = M
V(of ice) = M / 0.92

Therefore, the volume of ice is greater than the volume of water for any given mass. It follows that the water expands when it freezes.

I hope that this information is useful...

aznnerd666