| all phenomena that are not artificial | natural phenomenon; |
| the phenomenon of a person or thing rising into the air by apparently supernatural means | levitation; |
| after death the soul begins a new cycle of existence in another human body | metempsychosis; rebirth; |
| any natural phenomenon involving chemistry (as changes to atoms or molecules) | chemical phenomenon; |
| the phenomenon of an element existing in two or more physical forms | allotropism; allotropy; |
| chemical process in which one atom or ion or group changes places with another | exchange; |
| change in the electrical conductivity of a substance as a result of absorbing electromagnetic radiation | photoconduction; photoconductivity; |
| the disappearance of electrical resistance at very low temperatures | superconductivity; |
| an exchange produced by the chemical action of radiant energy (especially light) | photochemical exchange; |
| an emission of photoelectrons (especially from a metallic surface) | photoemission; |
| the formation of crystals | crystallisation; crystallization; crystallizing; |
| a powdery deposit on a surface | bloom; efflorescence; |
| a phenomenon that follows and is caused by some previous phenomenon | consequence; effect; event; issue; outcome; result; upshot; |
| any result that follows its cause after an interval | aftereffect; |
| the consequences of an event (especially a catastrophic event) | aftermath; backwash; wake; |
| the phenomenon of a popular trend attracting even greater popularity | bandwagon effect; |
| the shattering or crushing effect of a sudden release of energy as in an explosion | brisance; |
| the phenomenon whereby a small change at one place in a complex system can have large effects elsewhere, e.g., a butterfly flapping its wings in Rio de Janeiro might change the weather in Chicago | butterfly effect; |
| a secondary and sometimes unexpected consequence | by-product; byproduct; |
| the result of alteration or modification | change; |