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Molecular Models
#1

The model below shows a substance before and after a phase change.  

What is freezing?

#2

The model below showing a substance before and after a phase change.  

What is melting?

#3

The model below showing a substance before and after a phase change.  



What is evaporation?

#4

The model below showing a substance before and after a phase change.  

What is sublimation?

#5

The model below showing a substance before and after a phase change.  


 

What is deposition?

Energy Transfer
#1

The model below shows a substance before and after a phase change.  Energy must do this for this change to occur.

What is taken away?

#2

The model below shows a substance before and after a phase change.  Energy must do this for this change to occur.

What is be added?

#3

The model below shows a substance before and after a phase change. Energy must do this for this change to occur.

What is be taken away?

#4

The model below shows a substance before and after a phase change.  Energy must do this for this change to occur.

What is be taken away?

#5

The model below shows a substance before and after a phase change.  Energy must do this for this change to occur.

What is be taken away?

Forces of Attraction
#1

True or false:  Water molecules are attracted to one another.

True

#2

True or False:  When molecules move faster, the force of attraction between them decreases.

False

#3

The states of matter from weakest to strongest intermolecular forces.

What is gas, liquid, solid?

#4

True or False: All substances have the same force of attraction between molecules.

False

#5

The stronger the force of attraction between molecules, the (lower/higher) the freezing point of that substance will be.

higher

Useful Science Words
#1

anything that has mass and takes up space

What is matter?

#2

transfer of heat by atoms or molecules bumping into one another

What is conduction?

#3

two or more atoms connected or bonded together

What is a molecule?

#4

energy that flows from warmer to cooler regions of matter

What is heat?

#5

measure of the average kinetic energy of the atoms or molecules in matter

What is temperature?

#1

Unlike most other substances, water does this when freezing.

What is takes up more space?

#2

32 degrees Fahrenheit is the temperature that water does this.

What is freeze?

#3


The beakers both contain water. This beaker has the greater AVERAGE kinetic energy.

What is Beaker B?

#4

Clouds, fog, and your breath you see on a cold day are all water in this state.

What is liquid?

#5

This substance has a higher freezing point than water. 

What is <any solid at room temperature>?

Final Question

the temperature that nitrogen becomes a liquid in Celsius (°C)

What is -196 °C?