Chapter 1 Phase Change

What are scientists saying could have happened to Lake Titan?

• Their satellite images are not capturing accurate photos.

• It may have evaporated or froze.

• The life on the moon may have used the water as a resource.

• Supernatural powers may have caused it to disappear.

Tags

NGSS.MS-ESS3-1

NGSS.MS-PS1-4

What is the definition of phase?

• a noticeably different form of one substance.

• Evidence that refutes a claim.

• Tiny particles in an atom.

• A comment or question towards text or a diagram.

Tags

NGSS.MS-PS1-4

This phase of matter holds its shape and does not take the shape of its container.

• gas

• liquid

• solid

• none of the above

Tags

NGSS.5-PS1-3

This phase of matter flows and takes the shape of it's container.

• gas

• liquid

• solid

• none of the above

What does "molecular scale" mean?

• Molecules are very tiny so their weight is difficult to find.

• Substances can be seen with the human eye.

• Substances can NOT be seen with the human eye. They need an instrument to assist.

• Molecules move differently in each substance.

Describe molecular movement in a solid.

• Molecules vibrate back and forth with little movement.

• Molecules flow while sticking close together with some movement.

• Molecules fly freely with a lot of movement.

• Molecules are still with no movement.

Describe molecular movement in a liquid.

• Molecules vibrate back and forth with little movement.

• Molecules flow while sticking close together with some movement.

• Molecules fly freely with a lot of movement.

• Molecules are still with no movement.

Tags

NGSS.MS-PS1-4

Describe molecular movement in a gas.

• Molecules vibrate back and forth with little movement.

• Molecules flow while sticking close together with some movement.

• Molecules fly freely with a lot of movement.

• Molecules are still with no movement.

Tags

NGSS.MS-PS1-4

What does "refute" mean in science?

• to provide evidence that supports a claim.

• Evidence that is incorrect and/or made up.

• Scientific information provided by a real life scientist.

• to provide evidence that goes against the claim

Tags

NGSS.HS-PS4-3

Which claim does our data and evidence support the most?

• The molecules in a substance disappear and no longer exist during phase changes.

• Molecules change into a new kind of molecule during phase changes.

• Molecules move differently during different phase changes.

• Molecules reproduce and create multiple molecules the more phase changes they go through.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4