density and phase changes

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

The density of this material is 2 g/cm³.
There are 24 cm³  Find the total mass.

• 12 grams
• 48 grams
• 12 g/cm³
• 48 g/cm³

Which box has a higher density?  

• Box A
• Box B
• cannot be determined
• they are the same

True or False:  The density of a specific type of material never changes.  

• True
• False

Here are 5 cubic centimeters (cm³).    All together they  have a mass of 20 g what is the density?

• 20 g/cm³
• 80 grams
•  4 g/cm³
• 80 g/cm³

Which substance is the MOST dense?  ** Use the key

• A
• B
• C

Put the liquids in order from most dense to least dense?

• 4, 3, 2, 1
• 1, 2, 3, 4
• 3, 4, 2, 1, 
• 4, 3, 1, 2

If a liquid has high viscosity, it probably has:

• strong resistance to flow
• weak resistance to flow

At what point(s) is a phase change occuring?

• A
• B and D
• D
• C and A

Point "B" is known as the:

• melting point
• freezing point
• boiling point
• both freezing and melting point.