what causes water to freeze?

Answer 1

Molecules vibrate. As they vibrate faster, matter expands. The vibration is this energy we call heat. When vibration is lowered to a certain levels, matter becomes solid (water freezes), at the other end of the spectrum, when molecules agitate at a certain speed, liquids turn into gas (water evaporates).

Answer 2

The molecules are in everything .Liquids and solids. When water is unfrozen the molecules move freely and fast but when tempetures start to drop the molecules become less active and as the tempeture drops below freezing the the molecules slow down to a stop and bind together and become a solid form hence you get ice. Something like that anyway, Im not a scientist.

Answer 3

As the temperature is lowered, the temperature heads more and more towards absolute zero. The third law of thermodynamics states that as temperature approaches more and more towards absolute zero, the system will head towards no entropy. Since a solid has less entropy than water, the liquid water heads to solid at low temperature.

Answer 4

Temperature below 0 degrees celcius.....bonding between the molecules causes water to become solid.

Answer 5

Everything has moving particles. Heat makes them move faster and cooling them causes them to move slower. When water freezes, the particles actually stop moving and stick to each other. Same for evaporation too. The particles are moving so fast that they actually bounce off each other.

Answer 6

At 32 degrees water will freeze
So cold stuff not 0 degrees like others have said.
32 degrees is the temperature of freezing.
So there ya go

Answer 7

Taking down the temp. slows the movement of a substances molicules and changes it's physical state. Plasma to Gas.Gas to liquid,liquid to solid.
Interestingly, gasses under extreme pressure and temp. can be transformed into liquid metal !

Answer 8

temperature below 0 degrees

Answer 9

at a lower pressure, the molecules move less until they hardly move, which is then Ice.

Answer 10

cold