| A | B |
|---|
| Activation Energy | The minimum amount of energy needed to start a chemical reaction.,  |
| Battery | A device that produces electricity; a group of voltaic cells that are connected to one another.,  |
| Chemical Property | A property used to characterize materials in reactions that change their identity,  |
| Coulomb | Is the amount of electric charge transported in one second by steady current of ne ampere.,  |
| Electrolyte | A liquid or paste that conducts electricity.,  |
| Force | A push or pull exerted on an object.,  |
| Hertz | Frequency is the number of times a point on a wave passes a fixed reference point in one second. The SI unit for frequency is the Hertz (Hz).,  |
| Interference | The interaction between waves that meet.,  |
| Magnetic Declination | The angle between geographic north and the north to which a compass needle points.,  |
| Neutralization | A reaction between an acid and a base.,  |
| Period | A sequence of elements arranged in order of increasing atomic number and forming one of the horizontal rows in the periodic table..,  |
| Protein | An organic compound that is a polymer made of amino acids.,  |
| Single-Displacement Reaction | Zinc is replacing cooper in the compound. This is called single replacement or single displacement reaction. It is a type of oxidation reduction chemical reaction when an element moves out.,  |
| Substituted Hydrocarbon | Formed when one or more hydrogen atoms in a hydrocarbon chain or ring is replaced by a different atom or group of atoms,  |
| Uranium | A radioactive element found in certain rocks and used as a fuel for nuclear power plants.,  |
