Classifying Matter

What is a chemical change?

• when material turns into something new

• when material changes shape

• when material goes from liquid state to gas state

• when material is broken into smaller pieces

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Element found in computer chips and glass:

• silicon

• magnesium

• lead

• titanium

True for all Mixtures:

• cannot be physically separated

• always clear

• always cloudy

• can be physically separated

How many different elements make-up the compound shown?

• 2

• 3

• 6

• 7

Tags

NGSS.MS-PS1-1

Which of the following is a compound?

(circles of different colors represent different types of atoms)

(circles that are touching are chemically bonded)

• 
• 
• 

Tags

NGSS.MS-PS1-1

Which of the following is a mixture?

(circles of different colors represent different types of atoms)

(circles that are touching are chemically bonded)

• 
• 
• 

Tags

NGSS.MS-PS1-1

Salt is a _________. 

• compound 

• element 

• mixture 

A substance that contains only one type of atom is a(n)

• compound

• element

• heterogeneous mixture

• homogeneous mixture

Two or more physically combined substances form

• a compound.

• an acid.

• an element.

• a mixture.

All matter is made of .....

• energy 

• atoms 

• air

• chemistry

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5