Changes in State #1

When a substance melts, the kinetic energy _____________.

• decreases

• stays the same

• increases

• decreases then increases

The change from liquid to solid, or the reverse of melting, is called:

• freezing
• condensation
• boiling
• sublimation

Tags

NGSS.MS-PS1-4

What is vaporization?

• a liquid becoming a gas
• a gas becoming a liquid
• a liquid becoming a solid
• a gas becoming a solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens when a liquid gains enough energy to move independently, forming a gas?

• vaporization

• freezing

• melting

• condensation

Tags

NGSS.MS-PS1-4

An ice cube turning into water is an example of:

• melting

• freezing

• condensation

• boiling

Tags

NGSS.MS-PS1-4

What happens when the particles in a liquid move so slowly that they begin to take on fixed positions?

• Condensation
• Vaporization
• Melting
• Freezing

During ______________________ the particles in a solid begin to vibrate more rapidly until the bonds holding them in place break allowing them to move freely.

• melting

• boiling

• vaporization

• sublimation

According to your graph on page 3, what is the boiling point of water?

• 95-102 C

• 85-95 C

• 103-108 C

During the lab, you were instructed to bring the water to a boil, and then let it boil and record the temperature for another....

• 3 minutes

• 2 minutes

• 1 minute

• 4 minutes

When an object reaches its boiling point, it continues to rise in temperature for several minutes before it maintains a constant temperature.

• false

• true