Pure Substances and Mixtures L4

Atoms combine in different ways to make up all of the substances you encounter every day.

• true

• false

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Saltwater can be separated into salt and water.

• true

• false

A mixture of soil has the same chemical composition throughout.

• true

• false

_ are the smallest unit of an element that maintains the properties of that element.

• Molecules

• Compounds

• Atoms

The three classes major classes of matter are _, _, and _.

• liquids, solids, gases

• molecules, elements, atoms

• elements, compounds mixtures

A(n) _ is like a building block of matter.

• molecule

• atom

• element

• mixture

Tags

NGSS.MS-PS1-1

A(n) _ is made up of one or more of the same kind of atom chemically combined.

• atom

• element

• compound

• mixture

Tags

NGSS.MS-PS1-1

A(n) _ is made up of different kinds of atoms chemically combined.

• compound

• mixture

• suspension

• colloid

Tags

NGSS.MS-PS1-1

A(n) _ contains a variety of elements and compounds that are not chemically combined with each other.

• atom

• element

• molecule

• mixture

Elements and compounds are _.

• colloids

• pure substances

• molecules