1. WHO AM I? Mixture or Substance
I have a definite and uniform composition.
My two parts are physically combined.
I have a chemical formula.
I am made of a single type of atom.
I am made of two or more types of atoms.
My composition can vary.
My components can be separated by physical means.

2. WHO AM I?
Mixture or Substance
Substance
Mixture
Mixture; substance

3. WHO AM I? Mixtures: Heterogeneous or Homogeneous
I exist in more than one phase and settle into layers.
My particles scatter light.
I am negative for the Tyndall effect.
My particles are so small that they are not visible and cannot be filtered out.
I am also known as a solution.
My components are distinguishable and will separate into phases.
I tend to appear cloudy.

4. WHO AM I? Mixtures: Heterogeneous or Homogeneous Heterogeneous

5. WHO AM I? Mixtures: Suspensions, Colloids, or Solutions
My particles are of intermediate size but cannot be filtered out.
I often appear cloudy because my particles remain suspended rather than completely dissolving.
When I am liquid, I am clear and transparent.
My particles are large and usually visible.
My particles can be separated by filtration or centrifuging.
My composition is uniform and exists in a single phase.
My particles are too small for filtration but can be separated by distillation.

6. WHO AM I? Mixtures: Suspensions, Colloids, or Solutions Colloids
Colloids; solutions

7. WHO AM I? Substances: Elements or Compounds
My chemical formula reflects only one type of atom.
I am found on the Periodic Table.
I can be broken down into simpler substances by chemical means but not by physical means.
My properties are very different from those of my separate parts.
I have a chemical formula.

8. WHO AM I? Substances: Elements or Compounds Elements Compounds