PS.5.1.2- Physical and Chemical Changes

When something burns, is it a physical change or a chemical change?

• Physical change

• Chemical change

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Select the signs that indicate a chemical change has happened.

• A new color appears

• The shape changes by cutting or folding

• Bubbles or gas are released

• A solid melts into a liquid

Tags

NGSS.MS-PS1-2

When ice melts, what stays the same before and after the change?

• Mass

• Temperature

• Shape

• Color

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-4

Which statement best explains “conservation of mass”?

• Matter is created when heated

• Mass can change during a physical change

• Mass is not created or destroyed; it only changes form

• Temperature stays the same during any change

Tags

NGSS.MS-PS1-5

What happens when an ice cube melts in water? Did the matter change into a new substance?

• Yes, it became water vapor

• Yes, it became a new substance

• No, it is still water

• No, it disappeared

Match the following

• conservation of mass

• change the way matter looks, feels, or appears, but it stays the same substance

• chemical changes

• the total mass stays the same before and after a change

• matter

• anything that takes up space and has mass

• physical change

• create a new substance with new properties that cannot be easily undone

Tags

NGSS.MS-PS1-5

Organize these options into the right categories

Groups:

(a) Signs of a Chemical Change

,

(b) signs of a physical change

• new substance forms

• a new color appears

• change on appearance

• the change can usually be reversed

• change in state of matter

• the change can not be easily reversed

• heat, light, or sound is produced

• a new smell is made

• bubbles or fizzing happen

• change is size or shape

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Classify the following as Chemical Change or a Physical Change.

Groups:

(a) Physical Change

,

(b) Chemical Change

• Steam from a shower

• Ice cube melting

• Chopping wood

• Burning wood

• A bike rusting

Tags

HS-PS1-2

HS-PS1-7

Classify the following as Chemical Change or a Physical Change.

Groups:

(a) Physical Change

,

(b) Chemical Change

• 
• 
• 
• 
• 
• 

Tags

HS-PS1-2

HS-PS1-7

You have a closed container with a burning candle inside.  After the candle goes out, you notice the total mass of the container and its contents has not changed.  Which concept is being illustrated?

• flammability

• law of conservation of mass

• physical change

• matter

Tags

NGSS.MS-PS1-5