2		A material that moves freely to fill the space available. (3)
6		Anything that takes up space is called--- (6)
10		You cannot see through it. (6)
11		This means we can see through it. (11)
12		This is called water when liquid, when solid it is called. (3)
13		The temperature at which liquid changes to gas. (7,5)
16		This take place when water changes from liquid to gas. (11)
18		When this is applied to ice it begins to change state, first to liquid then a gas. (4)
19		This turns solid to liquid. (7)

1		The amount of matter in an object. (4)
2		This material is made by heating sand. (5)
3		This turns water to ice. (8)
4		A material that flows freely to take the shape of the container it is in. (6)
5		This comes from rocks called ores. (5)
7		You cannot easily see through it. (11)
8		This means water cannot get through. (10)
9		This takes place when water changes from gas to liquid. (12)
14		This material is made by mashing up wood from trees. (5)
15		The amount of space something takes up. (6)
17		All materials exist as liquid, gas or --- (5)