Generation Genius Chemical vs Physical Changes

Which of these is true of fruits blended together?

• Chemical Change

• Physical Change

• Both

• Neither

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

• Iron

• Gold

• Aluminum

• Gallium

Tags

NGSS.MS-PS1-4

Changes between states of matter are often which?

• Chemical Change

• Physical Change

• Both

• Neither

Tags

NGSS.MS-PS1-4

When something burns it is which of these?

• Chemical Change

• Physical Change

• Both

• Neither

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the video, What caused the candles to go out?

• Oxygen

• Nitrogen

• Carbon Dioxide

• Hydrogen

Tags

NGSS.MS-PS1-2

Why is this a physical change?

• it made a mess everywhere.

• the gas was already in the soda, the Mentos just released it.

• It changed from liquid to gas

• It is actually a chemical change because it made new substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

How does the team know the gas produced is hydrogen?

• They just know

• It was heavier

• it smelled funny

• flame test

Tags

NGSS.MS-PS1-2

How does hydrogen react in a flame test?

• burns with a pop sound

• flame goes out

• nothing happens

• the flame gets brighter

The spoiling of milk is an example of which type of change?

• Chemical Change

• Physical Change

• Both types

• Neither

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is mixing air into egg whites a physical or chemical change?

• Chemical Change

• Physical Change

• Both types

• Neither