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Science Vocab
| Term | Definition |
|---|---|
| Speed | a distance traveled by an object in a given amout of time. |
| velocity | an objects speed and direction at a given instant. |
| acceleration | a change in an objects speed or direction over time. |
| force | a push or pull. |
| balanced force | occurs when the total of all forces on an objects equals zero and an objects motion does not change. |
| Metal | a solid, shiny material that is typically hard ductile with good conductivity. |
| non metal | an element or substance that is not a metal. |
| metalloid | an element whose properties are intermeidiate between those of metals and solid non metals. |
| group | a set of elements occupying a colum in the periodic table. |
| period | a set of elements occupying the entire horizontal row in the periodic table. |
| law of conservation of mass | matter cant be created or destroyed. |
| physical change | occurs when the apperance changes but chemically its the same thing. |
| chemical change/chemical reaction | recharging atoms and molecules to create a new substance. |
| chemical formula | a short hand way of showing, writting atoms,molecules and equations |
| molecule | when 2 or more atoms chemically combine. |
| flask | measure density |
| tripple beam balance | measure mass |
| beakers | metal liquids |
| goggles | protect your eyes from harmful chemicals. |
| flask | mixes chemicals. |