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science vocababulary
| Question | Answer |
|---|---|
| beaker | holds liquids and for ballpark estimates |
| eye dropper/pipette | addimg liquids drop by drop |
| microscope | magnifies microscopic objects |
| ruler | to measure the length of objects |
| test tube holder | used to pick up and hold test tubes for a short period of time |
| chemical change | when a chemical reaction takes place |
| atom | smallest particle in which an element can still be dividded and still have the properties of that element |
| proton | postivley charged particle that is in the nucleus |
| neutron | particle with no change |
| electron | a stable subatomic particle with a negative charge |
| balanced force | occurs when the total of all forces on an object equals zero and the objects of motion doesn't change |
| unbalanced forces | occurs when the net force on an object that doesn't equal zero |
| newton's first law | object at rest will stay at rest unlwss acted on an unbalanced force |
| newton's second law | the relationship between force, mass, and acceleration |
| newton's third law | for every action, there is an equal but opposite reaction |
| speed | didtance travled by an object in a given amount of time |
| velocity | an objects speed and direction at a given instant |
| acceleration | change in an objects speed or direction over time |
| force | a push or a pull |
| direction | the path or course an object takes |