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Mass
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: [[Mass]] is a [[scalar]] quantity as it has [[magnitude]] but does not have a direction.
The [[unit]]s of [[mass]] you should be able to use are:
*[[Megagram]]s: Also known as [[tonne]]stons. There are 1000kg in one [[megagram]].
*[[Kilogram]]s: For [[object]]s that can be lifted by [[human]]s.
*[[Gram]]s: For quantities of [[chemical]]s used in a [[Chemical Reaction|chemical reactions]]. There are 1000g in 1 [[kilogram]].