Matter - Anything that takes up space, has mass, and has properties you can observe and describe. , Buoyancy - The upward force of water or air on an object., Mass - The amount of matter making up an object., Solid - A form of matter that has a definite shape and takes up a definite amount of space., Liquid - A form of matter that takes up a definite amount of space and has no definite amount of space. , Gas - A form of matter that does not take up a definite amount of space and has no definite shape. , Properties - A characteristic of something that you can observe., Reduce, Reuse, Recycle - The three r's!,

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