Classifying Matter: Examples of Substances vs. Mixtures

Classify this matter: Sodium metal

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Water (H₂O)

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Tags

NGSS.MS-PS1-1

Classify this matter: Soil

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: coffee

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Oxygen gas (O₂)

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Alcohols, like ethanol (C₂H₆O)

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Carbon dioxide (CO₂)

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Chocolate chip cookie dough

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Air (about 70% N₂ , 20% O₂ , and 10% other gases)

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture

Classify this matter: Chicken noodle soup

• pure substance: element

• pure substance: compound

• homogeneous mixture

• heterogeneous mixture