2.2 changes of state Flashcards
1
Q
what is the melting point?
A
the temperature at which a solid melts
2
Q
what is the boiling point for water?
A
100˚C
3
Q
what happens when gas reaches a cold surface?
A
it condenses and turns back into a liquid
4
Q
what do you use to measure temperature?
A
thermometer
5
Q
what is the measurement for temperature?
A
degrees celsius (˚C)
6
Q
what is the melting point of water?
A
0˚C
7
Q
what is the meniscus of a measuring cylinder?
A
the curve at the top of the water level in a measuring cylinder
8
Q
when a liquid freezes, do the particles gain or lose heat energy?
A
lose
