| A | B |
|---|
| Atom | Basic unit of matter |
| Proton | Positively charged particle |
| Neutron | Neutral particle (no charge) |
| Electron | Negatively charged particle |
| Carbohydrates | Short term energy, structure in plants |
| Proteins | Builds muscles and bones |
| Lipids | Long term energy storage, form membranes |
| Nucleic acids | Store genetic info |
| Enzyme | A catalyst, protein that speeds up reactions |
| Compound | Two or more elements |
| Carbon | Base element for organic compounds |
| Acid | pH below 7, taste sour |
| Base | pH above 7, bitter |
| Neutral | pH=7, water for example |
| Covalent | Bond in which atoms share electrons |
| Ionic | Bond in which one atom donates an electron |
| Isotope | An atom with a different number of neutrons |
| Element | A substance made entirel of one atom |
| Cohesion | A molecule is attracted to itself (ex: water-water) |
| Adhesion | Water is attracted to other molecules |
| Surface tension | A force acting on the surface of a substance to resist force |
| Reactants | Substances that enter a chemical reaction |
| Product | Substances made from a chemical reaction |
| Polar | Having opposite charges on each end |
