Pure Substances & Mixtures - Quiz #1 Review

____________ are the smallest unit of matter

• Particles

• Compounds

• Elements

A/an ____________ is made up of one or more of the same kind of atom that are chemically bonded together.

• Atom

• Element

• Molecule

• Compound

What kind of mixture does NOT have a uniform composition?

• Heterogeneous

• Homogeneous

• Pure Substance

What kind of mixture has particles that are too big to stay mixed without being stirred or shaken?

• Solution

• Colloid

• Suspension

This is...?

• Homogeneous

• Heterogeneous

Milk and paint are examples of...?

• Suspensions

• Colloids

• Solutions

• Pure substances

This is...?

• A pure substance

• A heterogeneous mixture

• A homogeneous mixture

Is a rotting apple a physical or a chemical change?

• Physical change

• Chemical change

Tea and air are examples of...?

• Suspensions

• Colloids

• Solutions

• Pure substances

Smoothies, pizza, and Skittles are all examples of what?

• Mechanical Mixtures

• Solutions

• Compounds

• Colloids