Can anyone help me with these science definitions? What are their definitions and what do they mean?

Question

My science teacher wants us to do these definations and she didn't explain what they are. We do not have a science book and I can not find them anywhere. Thank you for your help. Here are the words:

(1) Physical property

(2) Physical change

(3) Density

(4) Chemical property

(5) Chemical change

(6) Melting

(7) Melting point

(8) Freezing

(9) Freezing point

(10) Evaporation

(11) Boiling

(12) Boiling point

(13) Condesation

(14) Sublimation

Answer 1

I would also suggest http://www.wikipedia.org/

Answer 2

I'll answer what I can. =D

(1) Physical property- Gas, Liquid, Solid

(2) Physical change- When matter changes it's physical property.

(3) Density- Dunno.

(4) Chemical property- Dunno.

(5) Chemical change- When matter changes it's chemical properties. I think.

(6) Melting- Fusion

(7) Melting point- The point where matter begins to melt/fuse.

(8) Freezing- When liquid is changed into solid.

(9) Freezing point- The point where liquid begins to harden into solid.

(10) Evaporation- When Liquid turns into gas.

(11) Boiling- The act of changing liquid to gas.

(12) Boiling point- Point where liquid begins to change into gas.

(13) Condesation- When Gas turns to Liquid.

(14) Sublimation- I think this is when Solid turns into gas.

Hope I helped. =D

Answer 3

1)physical property=whether it is solid, liquid or gas.
2)physical change= if the mass & volume of the substance changes.
3)Density= m not getting words to xplain.
4)Chemical property=of which components, the substance is made up of? e.g. Water=H2O, Carbon Dioxide=CO2.
5)Chemical Change= if the chemical components gets changed.
6)Melting=the change in the substance from solid form to liquid form is called melting.
7)Melting point=the point(degree Celcius or Fehrenheit) at which the solid form of the substance starts to convert into liquid form.
8)Freezing=the change in the substance from liquid form to solid form is called freezing.
9)Freezing point=the point(degree Celcius or Fehrenheit) at which the liquid form of the substance starts to convert into solid form.
10)Evaporation=the change of a liquid to a gaseous state is called evaporation.
11)Boiling=the stage where liquid turns to gaseous.
12)Boiling Point=the point(degree Celcius or Fehrenheit) at which the liquid starts to convert into gaseous form.
13)=dun remember..
14)sublimation=method of water purification

Answer 4

A lot of questions not worth answering for 10 points. But do a google search and you will get all the answers. Just type in the words and search.
To get a simple definition for these , look them up in a DICTIONARY !!

Answer 5

Go to a dictionary, using either online or an actual book, and look up the words. You might learn something by looking it up!