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

• Element
• Mixture
• Compound
• Solids

What cannot be broken down into other substances?

• Compound
• Mixture
• Solids
• Element

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

• mixture
• compound
• physical

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Tags

NGSS.MS-PS1-1

An element is made up of only one kind of _____.

• isotope
• plastic
• atom
• metal

How many elements are represented in the compound?
Na₂CO₃

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1

What is gold?

• element
• compound
• mixture

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

What is salad?

• element
• compound
• mixture

This picture represents which of the following?

• Element
• Compound
• Mixture

Tags

NGSS.MS-PS1-1

This picture represents which of the following?

• element
• compound
• mixture

Tags

NGSS.MS-PS1-1