2.Using water as an example, describe how matter can change from one form to another?

Answer 1

By freezing water.....water goes from a liquid state to a solid state. Or by heating/boiling water....water goes from a liquid to a gaseous state by evaporation. Many state changes occur dues to temperature. That is one of the most basic causes of the effect. Even further, if you melt an ice cube which is water, you go from a solid to a liquid. And the same thing if you heat an ice cube....vapors appear (solid to gas) (sublimation). If you trap the vapors/gas....the gas turns back to a liquid as you see droplets forming.

Hope this helped!

Answer 2

You have been given a lot of examples but few explanations. That is in part because science does not ask "how" but asks "what". The changes in the state of matter, in this case water, are almost always the result of adding or removing energy in the form of heat.

Answer 3

When heat (energy) is added to liquid water, the water particles excite and after the water reaches 100 degrees celsius, the energy will be used to change the state of matter from liquid (water) to gas (water vapor).

A similar process occurs with cooling liquid water, the water particles will lose heat (energy) and will slow in motion. After the water cools to 0 degrees celsius, the loss of energy will cause a change in the state of matter from liquid (water) to solid (ice)

Answer 4

H20 when cold enough becomes a solid and due to position of electrons is less dense then the liquid form so it floats on liquid water..when heated it becomes liquid..when heated further it vaporizes to become a gas called steam.

Answer 5

IF YOU HAVE A BOTTLE OF WATER AND YOU PUT THIS BOTTLE IN TO THE FRIDGE IT WILL BE ICE SO IN THIS CASE LIQUID MATTER CHANGE TO SOLD MATTER

Answer 6

You can seperate water into its elements, hydrogen and oxygen, two gasses using electolysis.

Answer 7

You are all giving examples. Not explanations of how it happens

Answer 8

freezes to ice (solid)
heats to vapor (gas)

Answer 9

ice -- water ---water vapour
solid---liquid---gas

Answer 10

liquid to solid....freezing
solid to liquid....melting
liquid to gas....evaporation
solid to gas.....sublimation

for more info....http://www.chem4kids.com/files/matter_intro.html