Matter 8th Grade

anything that has mass and takes up space

• cells

• matter

• molecules

• density

the study of the properties of matter and how matter changes

• chemistry

• biology

• physics

• ecology

a single kind of matter that is pure and has a specific set of properties

• substance

• atom

• molecule

• mass

a characteristic of a pure substance that can be observed without changing it into another substance

• chemical property

• chemical change

• physical property

• physical change

a characteristic of a substance that describes its ability to change into different substances

• chemical property

• chemical change

• physical property

• physical change

a pure substance that cannot be broken down into other substances by chemical or physical means

• compound

• molecule

• atom

• element

the basic particle from which all elements are made

• compound

• molecule

• atom

• element

the force of attraction that holds two atoms together

• compound

• molecule

• atom

• chemical bond

a neutral group of two or more atoms held together by covalent bonds

• compound

• molecule

• atom

• chemical bond

a substance made of two or more elements chemically combined in a specific proportion

• compound

• molecule

• atom

• chemical bond