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what is the diffrece of mass and weight
mass- is measured on a tripple beam ballance
weight - is measured on a spring scale
what are phisical changes?????
when matter can be oberved or measured without changing the compisition of the object
what are chemical chages???
a chemical change is the abbility to change into a whole new substance with a diffrent state
ex. wood burning in to ash, smoke
how can you find the volume of a irregular object ???
such as gas, you know a volume of a container, use that container open the lid then close it and you have a gass'(air) volume
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