Heating and cooling liquids Flashcards
- I will find out what happens when liquids are affected by changes in temperature, and why.
1
Q
What happens when a liquid is heated?
A
The liquids expands.
2
Q
Why do liquids expand when heated?
A
The particles start to vibrate with the heat energy, bump into each other causing them to move further apart, thus the liquid expands.
3
Q
When does a liquid change to a solid?
A
A liquid turns into a solid when it reaches it’s freezing point.
4
Q
How does a liquid change to a solid?
A
The particles in the liquid slow down and is soon arranged into structured patterns.
5
Q
What do we call a liquid changing into a gas? (2)
A
Boiling or evaporating
6
Q
Where does evaporation happen?
A
Evaporation happens at the surface of a liquid.
7
Q
Evaporation can happen at ______ temperatures.
A
Lower.
8
Q
When does a liquid boil?
A
A liquid boils at it’s boiling point.
