13 questions
What has happened to a substance if it starts at point B and goes to point C?
Nothing
It melted
It evaporated
It got warmer
What is it called when a solid becomes a gas?
Melting
Freezing
Sublimation
Deposition
Condensation is the name of what phase change?
Solid to Liquid
Gas to Liquid
Liquid to Solid
Gas to Solid
What phase exists at point A?
Solid
Liquid
Gas
All Three
What would the freezing point of this substance be?
0o
70o
140o
97o
Why is the boiling point of water at a lower temperature in Moroni than in San Diego?
The hotplate doesn’t get as hot
The change in atmospheric pressure
The change in population
There is more gas particles in the air in Moroni
In what state of matter are the atoms moving the slowest?
Solid
Liquid
Gas
Plasma
List the states of matter in order from most densely packed particles to least densely packed
Solid, Liquid, Gas
Liquid, Gas, Solid
Gas, Liquid, Solid
Solid, Gas, Liquid
A magician changes a gas into a liquid with out changing its temp. How did he do this?
By dissolving something into the liquid.
He learned to do it at Hogwarts
By increasing the atmospheric pressure
By adding an acid
What phase of matter has the most Kinetic Energy?
Solid
Liquid
Gas
Plasma
How can you boil water?
Add energy
Take away energy
Add pressure
Change the container it is in
Water boils, then you turn down the heat.Will the water get hotter if you turn the heat back up?
no, once the H2O reaches its boiling point the temperature won't rise
no, once the H2O boils it can't change temp until a solid forms
yes, the temperature will rise and the food will cook more rapidly.
yes, the temperature must be as high as possible to move the atoms.
How does adding heat affect liquid water?
it becomes a solid
its molecules move faster
new substances form
a color change is produced