Analyze and Interpret Data to Explain the Flow of Energy During Phase Changes Using Heating and Cooling Curves

Match the number on the diagram with the correct phase change

• Freezing

• 6

• Condensation

• 1

• Melting

• 3

• Sublimation

• 5

• Deposition

• 2

Tags

NGSS.MS-PS1-4

When ice/snow in the mountains goes directly from its solid form to a gas (water vapor), what is that process called?

• condensation

• sublimation

• precipitation

• evaporation

Tags

NGSS.MS-PS1-4

As the iron begins to heat, what is occurring at point A?

• Condensation

• Melting

• Vaporization

• Boiling

Tags

NGSS.MS-PS1-4

If you know that section #1 show water being heated to its liquid state what does number 4 show?

• temperature increasing to gas state

• water vapor/gas state

• condensation

• sublimation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

From point A to point E, the sample is going through an

• exothermic process by releasing heat to the surroundings

• exothermic process by absorbing heat from the surroundings

• endothermic process by releasing heat to the surroundings

• endothermic process by absorbing heat from the surroundings

Tags

NGSS.MS-PS1-4

Between which points is the temperature of the substance remaining constant? (a)  

• A-B only

• A-B, C-D, and E-F

• B-C only

• B-C and D-E

In which region(s) of the heating curve would water be a liquid and a gas at the same time? (a)  

• A

• B

• C

• D

• E

In which region(s) of the graph would the substance only be in one phase?

• Region 1, 3, & 5

• Region 2 & 4

• Region 1 only

• Region 1 & 2

Tags

NGSS.MS-PS1-4

Which letter indicates where water is in both the solid and liquid phase at the same time?

• A

• B

• C

• D

• E

NaCl was heated starting at an initial temperature of 0°C. The heating curve is shown in the picture. What is the melting point of this substance?

• 0°C

• 801°C

• 1000°C

• 1465°C