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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. |