Nature of Matter

A mixture that appears to be evenly mixed throughout:

• an atom
• a compound
• a homogeneous mixture
• a heterogeneous mixture

A pure substance...

• is an element or a compound
• is an element or a mixture
• is a compound or a mixture
• is a mixture

Tags

NGSS.MS-PS1-1

1 A substance made up of two or more chemically combinedelements is —

• an element
• mixture
• compound
• solution

Tags

NGSS.MS-PS1-1

 A substance that cannot be broken down into any other substance by ordinarychemical means is called —

• molecule
• mixture
• element
• compound

NaHCO₃ is an example of —

• an abbreviation
• a compound
• a mixture
• an element

Tags

NGSS.MS-PS1-1

What is an example of a mixture?

• Table salt

• Salt water

• Oxygen

• Air

A substance made of only one type of atom is called —

• an element
• a mixture
• a compound
• a salt

Tags

NGSS.MS-PS1-1

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

• physical properties
• chemical properties

Tags

NGSS.MS-PS1-2

Which type of property is the ability to conduct electricity?

• physical property
• chemical property

Properties that can be observed without changing the identity of the substance.

• Physical
• Chemical