Review for Annual Test 9° - Chemistry

Chemistry is the study of matter and the changes that matter undergoes.

• True

• False

Tags

NGSS.MS-PS1-5

Define a physical change.

• A change to a substance that occurs without forming a new substance.

• A change in matter that produces one or more new substances.

• A change that undergoes a chemical reaction.

• None of the above.

Define a chemical change.

• A change to a substance that occurs without forming a new substance.

• A change in matter that produces one or more new substances.

• A change that doesn't form something new.

• None of the above.

Tags

NGSS.MS-PS1-2

Which of the following is NOT a compound?

• $HCl$
  

• $NaCl$
  

• $Cl$
  

• $CO_2$

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• $H_{2_{ }}O$

• $NaCl$

• $CaCO_3$

• $Fe$

What cannot be broken down into other substances?

• compound

• solids

• mixture

• element

What is made up of two or more elements that are chemically combined?

• element

• mixture

• compound

• solid

Tags

NGSS.MS-PS1-1

Ripping paper is an example of...

• a physical change

• a chemical change

• both

• neither

Cooking an egg is an example of ...

• a physical change

• a chemical change

• neither

• both

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Rust forming over time is an example of ...

• a physical change

• a chemical change

• both

• neither

Tags

NGSS.MS-PS1-2