10 questions
What is the boiling point of water
0 C
100 C
273 C
50 C
What is happening at the boiling point?
liquid to gas
solid to liquid
gas to liquid
liquid to solid
What is water's freezing point?
100 C
0 C
32 C
5 C
What is happening at freezing point?
gas to liquid
liquid to solid
solid to liquid
liquid to gas
What is happening at water melting point?
liquid to gas
gas to liquid
solid to liquid
liquid to soild
Do all matter have the same boiling, melting, and freezing points?
Yes
No
Which of this can water be turned into
liquid
solid
gas
all of the above
What causes ice to melt?
evaporation
vapour
heat
transpiration
The process of changing water to ice or liquid is called change of state of matter ?
true
false
The teacher heats a pot of water. Once the water reaches 100°C, which point has the water reached?
Freezing
Boiling
Melting
Evaporation