Exploring Phase Change Concepts in Amplify

What is the state of butter at room temperature?

• Gas

• Solid

• Liquid

• Plasma

What does temperature measure in a substance?

• Volume

• Density

• Average kinetic energy

• Mass

Tags

NGSS.MS-PS1-4

Why do butter and olive oil have the same average kinetic energy at room temperature?

• They are the same substance

• They have the same volume

• They have the same mass

• They are at the same temperature

Tags

NGSS.MS-PS3-4

How do molecules in liquid oil move compared to those in solid butter?

• They move slower

• They move more freely

• They move in place

• They do not move

Tags

NGSS.MS-PS1-4

What happens to the average kinetic energy when energy is added to butter and oil?

• It decreases

• It remains the same

• It increases

• It fluctuates

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Why does butter remain solid initially when energy is added?

• It has a lower density

• It has a higher density

• Its molecules are moving freely

• Its molecules are moving in place

Tags

NGSS.MS-PS1-4

What indicates that butter is starting to melt?

• It evaporates

• It becomes colder

• Its molecules begin to move more freely

• It changes color

Tags

NGSS.MS-PS1-4

At what point does butter become a liquid?

• When it is mixed with oil

• When it is frozen

• When it is heated enough

• When it is cooled

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Can two substances at the same temperature be in different phases?

• Yes

• Only if they are different substances

• Only if they are the same substance

• No

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What determines the phase of a substance at a given temperature?

• Its molecular structure

• Its volume

• Its density

• Its color

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4