Understanding Atoms, Elements, Molecules, and Compounds

What are the basic building blocks of all matter?

• Atoms

• Molecules

• Elements

• Compounds

Tags

NGSS.MS-PS1-1

Which of the following is a pure substance consisting of only one type of atom?

• Water

• Gold

• Oxygen molecule

• Carbon dioxide

What is formed when two or more atoms bond together?

• Element

• Compound

• Molecule

• Atom

Tags

NGSS.MS-PS1-1

Which of the following is a compound?

• Oxygen

• Gold

• Water

• Hydrogen

Tags

NGSS.MS-PS1-1

What helps scientists understand the relationships between elements?

• Molecular structure

• Periodic table

• Chemical reactions

• Atomic number

Tags

NGSS.MS-PS1-1