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Chemistry is the study of things around us like water, air, food, and materials, and how they change.

Matter is anything that has weight and takes up space. Example: water, air, book, table.

The three states of matter are: Solid – like stone, pencil Liquid – like water, milk Gas – like air, oxygen

A solid has a fixed shape and size.c Example: ball, chair, ice.

A gas has no fixed shape and no fixed size. Example: air, oxygen.

A liquid has no fixed shape but has a fixed amount. Example: water, juice, oil.