Chemistry (Master) Horvath

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-4

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties
• liquid properties
• real properties

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Kim puts an ice cube in a beaker and it melts. This is a good example of:

• a physical change.
• a chemical change.
• an experiment.
• an analysis.

Tags

NGSS.MS-PS1-4

What is an example of a Chemical change?

• Ripped paper 
• boiled egg
• cracked egg
• sugar in water

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

One cup of water is left outside for two days when it was checked there was only half a cup left. What happened?

• evaporation; chemical change
• condensation; physical change 
• evaporation; physical change
• condensation; chemical change

Tags

NGSS.MS-PS1-4

Rotting fruit

• Chemical
• Physical

Tags

NGSS.MS-LS2-3

NGSS.MS-PS1-2

Photosynthesis

• Chemical
• Physical

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

Turn on a lamp.

• Chemical
• Physical

Tags

NGSS.MS-PS1-4

Frying an egg.

• Chemical
• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

During a chemical reaction, for example when combining carbon and oxygen to create carbon dioxide, the mass always...

• goes up
• goes down
• stays the same
  
• it depends on the reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5