Molecular Movement
Are molecules close or far from each other in a Solid?
The molecules are close
How do you make a Liquid a Solid?
You Freeze it. Remove Heat Energy.
What is the equation for Density?
Mass/Volume
How do you remove Heat Energy?
Cool something down.
Where did Mrs. Westbrook grow up?
California
How do the molecules in a Liquid move?
They move more than a Solid but not as much as a Gas. Medium movement.
When does Melting occur?
When Heat Energy is added, a Solid becomes a Liquid.
Which of these is MORE Dense?
Solid or Gas
Solid
True or False:
If you add Heat Energy to a Liquid it evaporates into a Gas.
True
What degree does Mrs. Westbrook have?
Bachelors of Science: Marine Biology
What happens to the molecules when a Liquid is heated to a Gas?
The molecules move quicker and spread out more.
When does Condensation occur?
When Heat Energy is removed, Gas is cooled down to a Liquid.
True or False:
Less dense things sink and more dense things float
True or False:
A change in Heat Energy is required for a Phase Change to occur.
True
What is Mrs Westbrook's favorite color?
Blue
When a ballon full of air is cooled down, it shrivels up. Whats happening to the molecules?
They are moving slower and closer together
True or False:
The molecules move Less when a Solid changes to a Liquid.
False
How are Density and Phases of Matter related?
When an object is more dense, the molecules within it are closer together like a Solid. When an object is less dense, the molecules within it are further apart like a Gas.
True or False:
When you add heat energy, the molecules in a substance become more excited.
True
What is the fundraiser that Mrs.Westbrook is doing for Sub 4 Santa?
Westbrook Hoops 4 Santa, 25 cents a shot, students with the best record that day get a treat. Tournaments 2nd week of December for students with the best record. Prize = Amazon Gift Card
When a balloon is heated up, it rises. What is happening to the molecules?
They are moving quicker and farther apart
What are the 2 Phase Changes that occur when Heat Energy is added?
Melting and Evaporation
What is the Density of a Solid with a Mass of 400g
and Volume of 21 cm3?
400/21 = 19.05 g/cm3
What are 2 Phase Changes that occur when Heat Energy is removed?
Condensation and Freezing
Where did Mrs. Westbrook meet her husband?
Cusco, Peru