Elements - Compounds - Mixtures

A pure substance that cannot be separated into simpler substances by chemical or physical means.  

• Element
• Compound
• Mixture
• Chemical

These contain only one kind of atom. 

• element 
• compound 
• mixture 
• water 

A compound is made of ________ atoms. 

• big 
• similar 
• different 

Carbon Dioxide is a ______ 

• compound 
• element 
• mixtures 
• Battle of Bunker Hill 

Tags

NGSS.MS-PS1-1

Salt is a _________. 

• compound 
• element 
• mixture 

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

Salt water boils and the water completely evaporates, salt (NaCl) is left in the bottom of the beaker. Which of the following is left in the beaker?

• Compound
• Element
• Mixture
• None of the Above

Tags

NGSS.MS-PS1-4

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

• mixture
• compound
• physical

This picture represents which of the following?

• element
• compound
• mixture of elements
• mixture of compounds

Tags

NGSS.MS-PS1-1