Hope this will help for studying.

1. Study Guide for Science
Sam Heckendorf 8-2

2. Physical

3. Distillation
A process that separates the substances in a
solution based on their boiling point
Orange dye

4. Filtration
• A process that separates materials based on
the size of their particles
• Sulfur and water

5. Plateau
A boiling point on a gragh
It’s flat
Graph of unknown substance

6. Pure Substance
• Can only be broken up chemically
• Unique set of properties
• Fixed ratio
• Gold

7. Suspension
• Layers
• qualitative
• Soap and water

8. Odor
• The smell of something
• Wafting test!
• Qualitative
• Water and alcohol

9. Colloid
• Particles are to big for light to go through
• Shining light in milk

10. Density
• D=mass/volume – (g/ml)
• Quantitative
• 4 metal objects in class

11. Mixture
• Can be seperatedphisically
• Combined in any ratio
• No unique set of properties
• Salt and pepper

12. Chemical

13. Flammability
• Ability to burn in the presents of oxygen
• Qualitative
• Alcohol/water

14. Reactivity
• How readily a substance combines chemically
w/ another substance
• Qualitative
• Oxygen/potassium

15. Evidence of Chem. Reaction
• Change in color
ex: oxidizing (to green)
• Production of gas
ex: celser tablets in water
• Formation of precipitate
• Change in temp.
ex: exothermic/endothermic