Midterm Review Physical Science 20-21

The melting point of a substance is the temperature at which the substance changes from a solid to

• Gas

• Liquid

• Solid

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

The characteristics of a substance depends on its size.

• True

• False

If you had two different substances that looked exactly the same, which properties would you use to tell them apart?

• Sound

• Size

• Color

• Density

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

• atom

• element

• molecule

• compound

A ______________ is made up of different kinds of atoms chemically combined.

• element

• compound

• mixture

• molecule

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

Elements and compounds are pure substances.

• True

• False

Which of the following is a way we can classify compounds?

• by their pH level

• as organic or inorganic

• by their role in the body

• all of these

Elements are broadly classified as metals, nonmetals, and _________________.

• compounds

• organic

• metalloids

• Metallica

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

• heterogeneous

• homogenous

• pure substance

• compound