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5th gr chem/h20 voc.

5th gr District Chemical Changes and Water test Vocabulary

TermDefinition
Chemical Change A change that occurs when one or more substances change into something new with different properties that can not be undone.
Physical Change A change in a substance that does not become something new. Can be undone.
Investigate to look into closely; to study in great detail
Properties qualitiies of something or things used to identify something.
Evidence Collected body of data from observations and experiments
Mass the amount of matter in an object
Chemical reaction (chemistry) a process in which one or more substances are changed into others
diagram detailed picture of something
molecule A group of atoms bonded together
Evidence of a Chemical Change color change, formation of a precipitate, formation of a gas, odor change, temperature change.
Chemical Change Challenges food cooking, rust formation, tarnish forming on doorknobs, fuel burning for heat, tarnished penny.
Temperature change for understanding An example of a temperature change in a chemical reaction is when a burning fire produces heat.
Demonstrate to explain or describe by modeling or using examples
occur to happen
Popular Chemistry sets

 



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