| A | B |
| C6H12O6 | sugar |
| NH3 | ammonia |
| O3 | ozone |
| CO2 | Carbon Dioxide |
| Breathable Oxygen | O2 |
| Methane | CH4 |
| Carbon Monoxide | CO |
| 2 or more atoms combined | Molecule |
| 2 or more different atoms combined | Chemical Compound |
| Chemical Formula | Way of showing which atoms and how many of each. |
| Chemical Reaction or change | A change where new chemicals are made. |
| Physical reaction or change | A change where the chemicals stays the same but changes form. |
| -ose | ending for any sugar |
| carbs | short for carbohydrates |
| starch | turns iodine black |
| photosynthesis | Plants make sugars from CO2 and H2O |