Terms : Hide Images
| 7282693331 | Energy | The capacity to do work or transfer heat | 0 | |
| 7282697294 | Physical change | An event which may alter the appearance but not the chemical composition of a sample of matter | 1 | |
| 7283347324 | Proton | Positive particle within an atom | 2 | |
| 7283348591 | Element | Fundamental substance that can't be broken down into simpler substances by chemical means | 3 | |
| 7283349825 | Scientific law | A well-tested pattern observed in data | 4 | |
| 7283351404 | Hypothesis | A testable explanation for observations in nature | 5 | |
| 7283352916 | Scientific theory | A well-tested & widely accepted scientific hypothesis | 6 | |
| 7283357668 | Chemical change | An event which alters the arrangement of atoms or ions within molecules of the substances involved | 7 | |
| 7283360503 | Electromagnetic radiation | A form of kinetic energy that travels in waves, for example X-rays or ultraviolet waves | 8 | |
| 7283365203 | First law of thermodynamics | The law that states energy input must equal energy output | 9 | |
| 7283366702 | Organic compounds | The group of compounds which contain at least 2 carbon atoms combined with other elements (often H & O) | 10 | |
| 7283370419 | Amino acids | The monomer of proteins | 11 | |
| 7283372128 | Mass number | The number of protons & neutrons in the nucleus of an atom | 12 | |
| 7283375412 | pH | The measure of hydrogen ions contained in a particular solution | 13 | |
| 7283376747 | Nucleotides | The monomer for nucleic acids | 14 | |
| 7283379709 | Second law of thermodynamics | The law stating that when energy is changed from one form to another, it is always changed to a less useful or lower-quality form of energy | 15 | |
| 7283381532 | Atomic number | The number of protons in an atom | 16 | |
| 7283383086 | Carbohydrates | The polymer made of simple sugars such as glucose | 17 | |
| 7283386006 | Coal | An example of high-quality energy | 18 | |
| 7283387761 | Heat stored in the Atlantic Ocean | An example of low-quality energy | 19 | |
| 7283387762 | Energy efficiency | The measure of how much useful work is actually produced from a given unit of energy | 20 | |
| 7283389941 | Isotope | The variations of an element which have the same atomic number but different mass numbers | 21 | |
| 7283394206 | Ion | A charged atom or group of atoms | 22 | |
| 7283396811 | Electron | Negative particle of an atom | 23 | |
| 7283405286 | Fission | The nuclear change in which large, unstable atoms split into lighter nuclei | 24 | |
| 7283408406 | Law of conservation of matter | The law which explains why all waste products must be dealt with in nature | 25 | |
| 7283409542 | Fusion | A change in which 2 small nuclei are forced together at very high temperatures, form a heavier nucleus | 26 | |
| 7313172213 | Positive feedback loop | Causes a system to change further in the same direction. | 27 | |
| 7313172936 | Negative feedback loop | Causes a system to change in the opposite direction from which it is moving | 28 | |
| 7283434075 | Nitrate ion |  | 29 | |
| 7283435897 | Sulfate ion |  | 30 | |
| 7283437177 | Phosphate ion |  | 31 | |
| 7283438883 | Ammonium ion |  | 32 | |
| 7283441009 | Methane |  | 33 | |
| 7283444883 | Ammonia |  | 34 | |
| 7283450305 | Sulfur dioxide |  | 35 |
