Changes in States of Matter

Which is needed for both boiling and melting to occur?

• solids
• gases
• heat
• pressure

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of these is an example of water changing from water vapor to liquid?

• moisture forming on a mirror when you breathe on it
• sweat forming on your body when you exercise
• ice cubes melting when you put them in a warm liquid
• rivers drying up during a very hot summer

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4

The teacher heats a pot of water. Once the water reaches 100°C, which point has the water reached?

• Boiling
• Melting
• Freezing
• Evaporating

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Jonathan places a pot of water on a stove. As the water boils, how does the state of the water change?

• from gas to liquid
• from liquid to gas
• from liquid to solid
• from solid to liquid

Tags

NGSS.MS-PS1-4

Molecules have energy and _________ stop moving

• rarely
• always
• never
• sometimes

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Matter changes state when...

• energy is added or removed
• energy is added
• energy is removed
• there is no energy

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

As molecules gain energy, they move _____ and spread apart, and vise versa.

• faster
• slower
• less
• inside

Tags

NGSS.MS-PS1-4

As molecules bump into each other, they push each other ________ until they are equally spread out. 

• together
• apart

+Energy(heat)

• solid to gas
• liquid to solid
• gas to liquid
• gas to solid

Tags

NGSS.MS-PS1-4

-Energy(heat)

• gas to solid
• solid to liquid
• solid to gas
• liquid to gas

Tags

NGSS.MS-PS1-4