Phases
The phase of matter whose particles have the most energy.
What is a gas?
When energy is added to a substance, this happens to the temperature.
What is the temperature rises?
This is the math formula that is used to find density.
What is, density= mass divided by volume?
This is the metric unit used to measure temperature.
What is Celcius?
This happens to the molecules in a substance when it is cooled.
What are the molecules slow down and get closer to one another?
The phase of matter whose particles are packed very close together.
What is a solid?
When a solid becomes a liquid.
What is melting?
What is, the 4th floor hallway in between periods?
This is the Fahrenheit temperature at which water freezes.
What is 32 F?
When a liquid changes to a gas.
What is evaporation?
The phase of matter with a definite volume but NOT a definite shape.
What is a liquid?
This happens when the molecules in a liquid gain enough energy that they can overcome their attractions and break away to become a gas.
What is evaporation?
The density of a rock with a mass of 16 grams and a volume of 4 cubic cm.
What is, 4 grams/cc?
This is the reason that the red liquid in a thermometer rises when the temperature increases.
What is, the molecules in the liquid spread further apart, causing the liquid to go up?
When we exhale in the winter and we see "smoke".
What is condensation?
The phase of matter with a definite shape and a definite volume.
What is a solid?
This happens to the energy in something when its temperature decreases (or goes down).
What is the energy is removed?
Density is a comparison of these two measurements.
What is, mass and volume?
This is the Celcius temperature at which water boils.
What is 100 C?
In order to make a solid melt faster, do this to the energy...
What is add energy?
True or false: gases have mass.
This happens when the molecules of a gas slow down enough to come together and form a liquid.
What is condensation?
The gold crown has a density of 5 grams/cc and a mass of 20 grams. Find the crown's volume.
What is, 4 cubic cm?
This is what temperature is a measure of.
What is, the average kinetic energy of the molecules in a substance?
In order to speed up the rate of condensation, do this to water vapor...
What is make water vapor colder (or remove energy)?