| A | B |
|---|
| IONIC BOND | INTERACTION BETWEEN ATOMS WITH AN UNEQUAL NUMBER OF POSITIVE AND NEGATIVE PARTICLES |
| COMPOUND | TWO OR MORE ELEMENTS THAT ARE CHEMICALLY JOINED |
| FORMULA | TELLS WHAT ELEMENTS ARE IN A COMPOUND AND THE RATIO IN WHICH THEY OCCUR |
| NUCLEUS | ATOMS' INNER CORE |
| PROTON | PARTICLE WITH A POSITIVE ELECTRICAL CHARGE |
| CHEMICAL BOND | INTERACTION BETWEEN ATOMS INVOLVING THE REARRANGEMENT OF ELEMENTS |
| ELECTRON | PARTICLE WITH A NEGATIVE CHARGE |
| NEUTRON | PARTICLE WITH NO ELECTRICAL CHARGE |
| COVALENT BOND | INTERACTION BETWEEN ATOMS SHARING ELECTRONS |
| ELEMENT | SUBSTANCE MADE UP OF ONLY ONE KIND OF ATOM |
| MOLECULE | SMALLEST UNIT OF A COMPOUND |
| CARBOHYDRATE | STARCHES AND SUGARS |
| PROTEINS | MADE UP OF C, H, O, AND N |
| LIPIDS | ANOTHER NAME FOR FATS, OILS, WAXES |
| NUCLEIC ACIDS | DNA AND RNA |
| DNA | HOLDS CODE TO MAKE ALL CELL PROTEINS |
| CATALYST | CHEMICAL THAT SLOWS DOWN OR SPEEDS UP A CHEMICAL REACTION |
| DOUBLE HELIX | SHAPE OF A DNA MOLEUCLE-TWISTED LADDER |
| PHYSICAL CHANGE | CHANGE OF STATE WITH NO CHANGE IN CHEMICAL MAKE UP |
