States of Matter and Phase Changes

A state of matter that has a definite volume and shape.

• solid

• liquid

• gas

• matter

At 0 degrees Celsius, water _________.

• evaporates

• boils

• freezes

• remains the same

Tags

NGSS.MS-PS1-4

Sand is a ___________________.

• liquid
• solid
• gas

Tags

NGSS.MS-PS1-4

Adding HEAT to matter causes its particles to:

• move faster and farther apart

• Move slower and farther apart

• Move faster and closer together

• Move slower and closer together

Tags

NGSS.MS-PS1-4

Solid carbon dioxide, commonly known as dry ice, changes from solid to vapor at room temperature. Predict the change in the motion of the carbon dioxide molecules while it changes state at room temperature.

• The molecules lose their energy and slide past each other.

• The energy of the molecules increases, but the spaces between them decrease.

• The molecules start vibrating in their positions with higher energy.

• The energy of the molecules and the spaces between them increase.

Tags

NGSS.MS-PS1-4

Dry ice is a solid form of carbon dioxide. At about room temperature, dry ice will turn from solid directly into a gas. This process is known as

• melting

• boiling

• evaporation

• sublimation

Tags

NGSS.MS-PS1-4

Water puddles on a sidewalk evaporate when the Sun heats the water. Which of these BEST describes what is happening as the water evaporates?

• Water changes phase as it releases heat to the environment.

• Water boils as it absorbs energy from the sidewalk.

• Water becomes a gas as it absorbs energy from the Sun.

• Water evaporates as its thermal energy is transferred to the air.

Tags

NGSS.MS-PS1-4

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is condensation?

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

Tags

NGSS.MS-PS1-4

NGSS.MS-ESS2-4