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Students will understand that a liquid is a state of matter that has a definite volume but not a ...

Students will understand that a gas is a state of matter that does not have a definite shape or ...

http://www.goorulearning.org/#collection-play&id=987f2901-0af6-4182-84fc-031b7e704723&share=true

http://www.goorulearning.org/#collection-play&id=e27bff59-9612-4a3e-9cfe-2931a87e30b8&share=true