L2 - Physical Changes

When some property of matter is changed, but it is still the same kind of matter, it is a

• State Change

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-4

Which of these are physical changes?

• breaking glass

• ripping paper

• sharpening a pencil

• folding a shirt

Establish means to

• break

• change

• demonstrate

• heat

An ice cube that has changed to liquid water is an example of

• a temperature change

• a physical change

• a chemical change

• heat being added

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If it's a cold morning and I want to ride my bike, I can expect to

• have to add more air to my tires since the cold air will cause the volume to decrease.

• walk because the cold air will freeze my wheels.

• wear shorts because the air is not effected by cold temperatures.

Which of these are examples of changes in the physical state?

• Ice cube melting

• Water boiling

• Freezing rain

• mixing salt and water

Tags

NGSS.MS-PS1-4

How does the mass of an ice cube compare to the same ice cube that has melted?

• It will be the same mass because that is just a physical change.

• The mass of the ice cube will be larger.

• The mass of the ice cube will be smaller.

Tags

NGSS.MS-PS1-5

Is the melting point for all substances the same?

• Yes, because all substances melt at the same temperature.

• No, because different substances have different melting points due to the different particles.

The melting and freezing point for water is

• 100 degrees Celsius

• 0 degrees Celsius

• 32 degrees Fahrenheit

• 212 degrees Fahrenheit

Tags

NGSS.MS-PS1-4

Mrs. Stockman built a beautiful unicorn out of legos. Cozy accidentally dropped it and it broke. Would the mass of the constructed unicorn and the broke unicorn be the same?

• Yes, because it is made of the same amount of matter even if it's in small pieces

• No, because the smaller pieces will be less.

• Yes, because you don't lose mass because of a physical change.

• No, because the mass disappears when things are broke into smaller pieces.

Tags

NGSS.MS-PS1-5