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| 7451808767 | Element | Substance that CAN'T be broken down by chemical reactions (atom) | 0 | |
| 7451822142 | Compound | 2 or more different elements combined in a fixed ratio | 1 | |
| 7451855655 | Structure of atoms | Protons Electrons Neutrons | 2 | |
| 7451859048 | Atomic number | How many protons | 3 | |
| 7451861431 | Atomic mass | Total number of protons and neutrons in nucleus of atom |  | 4 |
| 7451879252 | Covalent Polar Bond | Electrons of the bonds are not shared equally |  | 5 |
| 7451885617 | Covalent Non-Polar Bond | Share electron equally Two atoms have the same electronegativity |  | 6 |
| 7451893418 | Ionic Bond | Binding of opposite charged ions together |  | 7 |
| 7451900746 | Hydrogen Bond | Carries a partial charge and an electronegative atom |  | 8 |
| 7451929698 | Van Der Waals Force | Positive and negative region of molecules | 9 | |
| 7451941074 | Cohesion | Hydrogen bonds hold water molecules together | 10 | |
| 7451999884 | Adhesion | Attraction between different substances | 11 | |
| 7452002770 | Surface Tension | How hard it is to break the surface of a liquid | 12 | |
| 7452029045 | Moderating Temps | Water has a high heat capacity. Large bodies of water can absorb large amounts of heat with only small changes in temp. | 13 | |
| 7452037535 | Versatile Solvent | Water polarity allows it to dissolve ionic compounds and other molecules |  | 14 |
| 7452045927 | Carbon | "Backbone of life" Gives it shape | 15 | |
| 7452110900 | Dehydration Synthesis | 2 monomers bond together through the loss of a water molecule |  | 16 |
| 7452117035 | Carbohydrates | Serve as fuel & building material Includes sugars | 17 | |
| 7452121307 | Lipids | **Hydrophobic DON'T form polymers Nonpolar Bond Consists of hydrocarbons | 18 | |
| 7452129391 | Proteins | Speed up chemical reactions- enzymes Protect against disease, support, movement, storage of amino acids | 19 | |
| 7472246623 | Why do most polar covalent bonds involve nitrogen or oxygen? | Oxygen has a partially negative charge | 20 | |
| 7472256442 | How/ Why do ions form? How do ionic bonds form? | Ionic bonds form when one atom takes all of the electrons To fill a valence shell | 21 |
