Property Changes & Phase Changes

Phase change going from Liquid to Solid...

• Melting

• Freezing

• Condensation

• Sublimation

Tags

NGSS.MS-PS1-4

Which of the following is true about solutions?

• The particles of the solute become very small

• Evaporation can be used to separate solutions

• The substance spreads out evenly

• All of these options are true

Tags

NGSS.5-PS1-1

Melting a chocolate bar?

• Physical Change
• Chemical Change 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A physical change occurs when a substance _____. 

• breaks into individual elements
• becomes a new substance
• changes from an acid to a base
• changes shape, size, and form

We call H₂O (water) molecules that are in a solid state:

• Ice

• Water

• Steam/Vapor

Tags

NGSS.MS-PS1-4

The molecules in a liquid move:

• A lot and pretty fast.

• A medium amount, they slide and glide.

• Just a little.

• Not at all.

Tags

NGSS.MS-PS1-4

If the H₂O (water) molecules in ice are heated, they will start to:

• Move faster.

• Move slower.

Tags

NGSS.MS-PS1-4

What happens when a piece of wood burns?

• A physical change takes place.
• A chemical change takes place.
• The wood loses its gravity.
• The wood loses its inertia.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In what state of matter, do particles move so fast they cannot be held together?

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The mixture shown here -

• Maintains its physical properties when combined

• Dissolves after being stirred together

• Will evaporate after a certain period of time

• Cannot be separated into ingredients

Tags

NGSS.MS-PS1-2