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Vocab
Science Terms
| Term | Definition |
|---|---|
| scientific method | a process in science experiments including making predictions and observations |
| equipment | tools used especially for science labs |
| safety | free from risk and danger |
| mass | amount of matter in object |
| chemical change | change to a new substance |
| physical change | change to physical properties |
| law of conservation of mass | matter can't be created or destroyed |
| molecule | made up of several atoms linked together |
| element molecule | molecule w/ more than 1 atom of the same element |
| compound molecule | molecule w/ 2 or more atoms of different elements |
| coefficient | number in front of formula placed to balance equations |
| diatomic molecule | contains 2 atoms |
| reactants | element or compound changes during chemical reaction |
| products | resulting chemical reaction, which is a compound or element |
| volume | amount of space object occupies |
| density | mass per unit volume |
| displacement | process of finding volume by measuring water levels before and after an object was placed in |
| atom | the smallest unit of matter that can't be broken down |
| nucleus | the center of an atom, containing the protons and neutrons |
| group | the columns in the periodic table, whose elements each have the same chemical composition and number of valence electrons |
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t0707893