Is burning wood a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-2

Is melting butter for popcorn a chemical or physical change?

• chemical
• physical

Tags

NGSS.MS-PS1-4

Which of the following is not a clue that a chemical change has occurred?

• The solution begins to bubble 
• A change in the state of matter
• The solution begins to change color
• The substance begins to produce a potent odor

Tags

NGSS.MS-PS1-2

A state of matter that has a definite volume and indefinite shape.

• solid

• liquid

• gas

• matter

A state of matter that has a definite volume and shape.

• solid
• liquid
• gas
• matter

Tags

NGSS.5-PS1-3

Two or more atoms joined together for a(n)...

• Element

• Compound

• Mixture

Tags

NGSS.MS-PS1-1

Salt has a chemical formula of NaCl.  Salt is a...

• Compound
• Element
• Mixture
• None of the Above

Tags

NGSS.MS-PS1-1

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical

A combination of substances that are not chemically combined is called a(n)____________. 

• mixture
• compound
• physical

What type of mixture is this?

• homogenous mixture
• chemical
• heterogeneous mixture 
• solid mix