| A | B |
|---|
| Atom | Smallest particles of matter with the properties of that element |
| Carbohydrate | Molecules that include sugars, starches and fiber which provide energy for cells. |
| Compound | Substances made up of 2 or more different elements joined by chemical bonds |
| Diffusion | The movement of molecules from high concentration to low concentration |
| Element | Groups of the same atom with unique properties |
| Phospholipid | A molecule that makes up much of the cell membrane |
| Hierarchy | a system or organization in which people or groups are ranked one above the other according to status or authority. |
| Lipid | A fat molecule that stores energy |
| Molecule | A group of atoms held together by chemical bonds |
| Nucleic Acid | A molecule that carries information in the cells |
| Osmosis | The diffusion of water through a semi permeable membrane |
| Protein | a molecule made up of smaller molecules known as amino acids that build, repair and regulate. |
| Proton | Positively charged particle within the atom |
| Neutron | Neutrally charged particle within the atom |
| Electron | Negatively charged particle in the atom |
| Nucleus | Made up of the protons and neutrons in the center of the atom. |
| Atomic number | The number of protons in the nucleus |
| Mass number | The number of protons and neutrons in the nucleus |
| Democritus | Came up with the concept and term atom |
| Dalton | Proposed all atoms of a particular element are identical |
| Thomson | Detected electrons but thought they were in the atom |
| Rutherford/Chadwick | Discovered the protons and neutrons at the center of the atom |
