Elements & Compounds & Molecules

The element oxygen, represented by the symbol O, is classified as

• a pure substance
• a compound
• a mixture
• a solution

Tags

NGSS.MS-PS1-1

Atoms combine to form _______. 

• electrons
• molecules
• nuclei
• neutrons

Tags

NGSS.MS-PS1-1

What is the tiniest particle in the entire universe?

• cells
• gases
• atoms
• liquids

Tags

NGSS.MS-PS1-1

What is the name of a SINGLE type of atom?

• cell

• proton

• element

• atom

What is the term for combining 2 or more atoms together?

• atoms
• elements
• molecules
• compounds

Tags

NGSS.MS-PS1-1

What is the term for combining 2 or more DIFFERENT atoms together?

• atoms
• elements
• molecules
• compounds

Tags

NGSS.MS-PS1-1

What is the picture displayed?

• atom
• element
• molecule
• compound

Tags

NGSS.MS-PS1-1

What is the picture displayed?

• atom
• element
• molecule
• compound

Tags

NGSS.MS-PS1-1

What is the picture displayed?

• atom
• element
• molecule
• compound

Tags

NGSS.MS-PS1-1

Which of the following represents an element?

• H₂O
• H₂
• NaCl
• CaCO₃