1. VOCABULARY
physical properties – shape, density, solubility, odor, melting point, boiling point, and color
chemical properties – acidity, basicity, combustibility, and reactivity

2. SHAPE
the external form or appearance characteristic of someone or something; the outline of an area or figure

3. DENSITY
the relationship between the mass of the substance and how much space it takes up

4. SOLUBILITY
the quantity of a particular substance that can dissolve in a particular solvent

5. ODOR
having a distinctive smell

6. MELTING POINT
the temperature at which a given solid will melt

7. BOILING POINT
the temperature at which a liquid boils and turns to vapor

8. COLOR
the way an object appears to reflect light Ex: Green, Yellow, Red, Blue, Purple

9. pH Scale
pH focuses on concentrations of hydrogen ions (H+) and hydroxide ions (OH-). The scale measures values from 0 all the way up to 14. Distilled water is 7 (right in the middle). Acids are found between 0 and 7. Bases are from 7 to 14. Most of the liquids you find every day have a pH near 7.

10. ACIDICITY
the level of acid in substances such as water, soil, or wine; the concentration of hydroxide (H+) Ions in a substance 0 – 6.9 on pH scale Ex: lemon juice, gastric acid (in your stomach)

11. BASICITY
the state of being a base; having a higher concentration of hydroxide (OH-) ions in a substance 7.1 – 14 on the pH scale Ex: drain cleaner; ammonia

12. COMBUSTABILITY
the quality of being capable of igniting and burning

13. REACTIVITY
tending to participate readily in reactions