How Can I Smell Things From a Distance - Learning Set #2 Review

Front

True or False - Elements are made of ONE kind of atom.

Back

True

Front

True or False. Air is a mixture?

Back

True

Front

What percentage of the air is Nitrogen Gas?

Back

78%

Front

A_________________ is a characteristic that describes a material.

Back

property

Front

Which of the following is NOT a property for identifying a substance? (Boiling Point, Freezing Point, Emission Spectra, Mass)

Back

Mass

Front

What is an element?

Back

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

Front

Define a mixture.

Back

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

Front

What is the primary gas in the Earth's atmosphere?

Back

Nitrogen (78%)

Front

What is a property in scientific terms?

Back

A characteristic or trait that can be used to identify a substance.

Front

List three properties used to identify substances.

Back

Boiling Point, Freezing Point, Emission Spectra.