Generation Genius Chemical Reactions

Which observation(s) might be used as evidence that a chemical reaction occurred?

• Color change

• Odor change

• Properties change

• All of the above

Tags

NGSS.MS-PS1-2

Which is an example of a chemical change?

• Burning wood

• Rust on a car

• Cooking food

• All of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following help a chemical reaction to happen faster?

• Molecule

• Atom

• Catalyst

• Density

Tags

NGSS.MS-PS1-2

_________ is (are) made of more than one atom.

• A compound

• Protons

• Neutrons

• An element

Tags

NGSS.MS-PS1-1

What type of reaction involves the breaking down of a substance into simpler substances?

• Single Displacement Reaction

• Double Displacement Reaction

• Synthesis Reaction

• Decomposition Reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

If you start a chemical reaction with 5 atoms of helium, how many atoms will you have after?

• 4 atoms

• 10 atoms

• 1 atom

• 5 atoms

Tags

NGSS.MS-PS1-5

Is TNT exploding a physical or chemical change?

• Physical

• Chemical

• Both physical and chemical

• Neither physical nor chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What kind of scientist forms new materials by studying chemical reactions?

• Chemical engineer

• Materials scientist

• Pharmacist

• Medical doctor

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-3

NGSS.MS-PS1-5

When something burns it is which of these?

• chemical change
• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5