Chemical vs Physical + types of matter

Melting a metal spoon made of Gallium is a physical change because a puddle of _____ metal is left afterwards.

• iron

• steel

• aluminum

• gallium

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

When something burns it is which of these?

• chemical change
• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is milk going sour a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is making orange juice a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.MS-PS1-2

Is sharpening a pencil a physical or chemical change?

• Physical 
• Chemical

Is bending copper wire a physical or chemical change?

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

Hard-boiled eggs are the a result of a chemical change because

• the eggs are the same size before vs after.

• the eggs have different properties (smell, taste, color) before vs after.

• the eggs weigh the same before vs after.

• the eggs went through a phase change.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Blending together ingredients into a smoothie is what kind of change?

• chemical change

• physical change

• both types of changes

• none of these

A copper penny turning green after a few years is an example of ...

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is NOT a sign that a chemical change has occurred?

• Formation of a gas (bubbles)

• Color change

• Phase change

• Produces light or heat

Tags

NGSS.MS-PS1-2