click below
click below
Normal Size Small Size show me how
Science Vocab
Term | Definition |
---|---|
Law of Conservation of Mass | mass can not be created or destroyed, only change form |
Physical change | occurs when 1 or more physical properties of a substance change |
Chemical change | when 2 or more substances interact to form a new substance |
Chemical formula | describing the number of atoms that are in a molecule of a compound |
Molecule | smallest part in substance |
Element molecule | 2 of the same molecule that bonded |
Compound molecule | 2 or more elements that make a molecule |
Chemical equation | a writing arrangement of atoms during a chemical reaction |
Subscript | the small number placed next to an element in a formula |
Coefficient | the large number placed in front of an element in a formula |
Reactants | compound or element during a chemical reaction that changes |
Products | compound or element that result in the chemical reation |
Force | push or pull |
Speed | distance travel by an object in the amount of time given |
Velocity | the objects speed and direction at a given instant |
Balanced force | doesn't create motion |
Unbalanced force | creates motion |
Accelaration | change in an objects speed or direction over time |
Newton | SI unit of force |
Direction | the way an object is moving |