8th Grade Vocabulary Review

Front

What is a Base?

Back

A substance with a pH above 7; examples include soap.

Front

What is an Equinox?

Back

A time when both hemispheres experience equal day and equal night, occurring when the Sun crosses the celestial equator.

Tags

NGSS.MS-ESS1-1

Front

What is Ultraviolet light?

Back

An electromagnetic wave emitted from the Sun that causes sunburns and can damage skin; it is beyond violet in the spectrum.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Front

What is an Element?

Back

A substance that cannot be separated or broken down into simpler substances by chemical means.

Front

What is a Solstice?

Back

The point at which the Sun is as far north or as far south of the equator as possible, marking the Summer and Winter.

Tags

NGSS.MS-ESS1-1

Front

What is an Acid?

Back

A substance with a pH below 7; examples include vinegar and lemon juice.

Front

What is a Mixture?

Back

A combination of two or more substances that retain their individual properties.

Front

What is a Compound?

Back

A substance formed when two or more elements are chemically bonded together.

Tags

NGSS.MS-PS1-1

Front

What is a Solution?

Back

A homogeneous mixture where one substance is dissolved in another.

Front

What is the Celestial Equator?

Back

An imaginary line that divides the celestial sphere into the Northern and Southern Hemispheres.