Pure Substance, Mixtures, and States of Matter

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

• Atoms

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1

An _______________ is made up of one or more of the same kind of atom chemically combined.

• atom

• element

• molecule

• compound

Tags

NGSS.MS-PS1-1

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• compound

• element

• molecule

• mixture

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

• mixture

• pure substance

• compound

• element

A ______________ mixture is one that does not have a uniform composition.

• heterogeneous

• homogenous

• pure substance

A _________________ mixture is one where the substances are evenly spread throughout.

• heterogeneous

• homogeneous

• pure substance

A type of mixture that falls in between suspensions and solutions are called ______________.

• solutions

• colloids

• suspensions

• pure substances

A snow globe would be an example of a __________________.

• colloid

• solution

• suspension

Tea and air are examples of ________________.

• solutions

• suspensions

• colloids

Which of these is an element?

• Salt (NaCl)

• Water (H20)

• Oxygen (O)

• Carbon Dioxide (CO2)