Pure Substances & Mixtures

Substances that are made up of ONLY one type of atom (element) or compound.

• Colloid

• Heterogeneous mixture

• Pure substance

• Suspension

• Homogeneous mixture

A _________ is made up of two or more substances that are together in the same place but ARE NOT chemically combined.

• Pure substance

• Mixture

• Solution

• Suspension

Identify which images are PURE SUBSTANCES! (Check all that apply) : )

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The substances in this mixture DO NOT blend smoothly throughout, and the individual substances that compose the mixture can be detected or seen.

• Homogeneous mixture

• Heterogeneous mixture

• Pure substance

• Suspension

The substances in this mixture have been mixed together so well that the different parts will not separate on their own.

• Homogeneous mixture

• Heterogeneous mixture

• Pure substance

• Suspension

• Solution

Identify which images are HETEROGENEOUS MIXTURES! (Check all that apply)

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Solutions are ___________ mixtures.

• Solid

• Homogenous

• Heterogeneous

• Gas

Suspensions are ___________ mixtures.

• Homogenous

• Solid

• Common

• Heterogeneous

How you would separate a saltwater solution which the water is collected?

• Filtration – using filter paper

• Distillation – vapor is collected

• Evaporation – solution is boiled and remains are collected

• Sieve – sifting (through a strainer)

• Magnetism – separating using a magnet

A pure substance that cannot be broken down into other substances by chemical or physical means. 

• compound          
• atom
• mixture 
• element