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| 4th Grade: 4th Grade Word List - Science (List 1) | 
| adaptation   | |
| the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light) | |
| calorie   | |
| unit of heat; unit of heat equal to the amount of heat required to raise the temperature of 1 kilogram of water by 1 degree | |
| composition   | |
| a mixture of ingredients; the spatial property resulting from the arrangement of parts in relation to each other and to the whole | |
| conductor   | |
| a device designed to transmit electricity, heat; person who collects fares on a public conveyance  | |
| electricity   | |
| energy made available by the flow of electric charge through a conductor; a physical phenomenon associated with stationary or moving electrons and protons | |
| mineral   | |
| solid homogeneous inorganic substances occurring in nature having a definite chemical composition; composed of matter other than plant or animal | |
| omnivore   | |
| a person who eats all kinds of foods; an animal that feeds on both animal and vegetable substances | |
| poles   | |
| one of two divergent or mutually exclusive opinions; one of the two ends of a magnet where the magnetism seems to be concentrated | |
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