| A | B |
|---|
| biologist | one who makes a scientific study of plants and animals |
| contaminate | to pollute or make impure by contact with something unclean |
| disintegrate | to break up or separate into small bits |
| effervescent | giving off bubbles of gas |
| elapse | to pass or slip by |
| embryo | animal in its earliest stages of growth and prior to birth or hatching |
| evolution | changes occurring over time in a living thing's physical and genetic form |
| exponent | one who interprets or champions a cause or idea |
| gaseous | in the form of or like a gas; not liquid or solid |
| hybrid | offspring of two organisms of different varieties or species |
| infinitesimal | extremely small; microscopic |
| nucleus | mass of specialized protoplasm in plant and animal cells |
| organism | individual plant or animal |
| peripheral | of the outer boundary or surface |
| prism | a transparent object, usually with triangular bases and rectangular sides, that separates white light into its color spectrum |
| psychologist | expert in the science of the study of the mind |
| saturate | to combine one substance with another substance until the second substance will contain no more |
| soluble | able to be dissolved |
| supernova | an exploded star up to 100 million times as bright as the sun, which gradually brightens and fades |
| synthesis | formation of a compound by combining separate elements or substances |
