What is an atom?

What are molecules?

What is concentration?

Narrow bands of high-speed winds that circle the earth, blowing from west to east

Energy that is transferred as a consequence of temperature differences.

A measure of the energy of random motion in a substance’s molecule.

The quantity of a substance within a certain volume.

An instrument used to measure atmospheric pressure

the smallest chemical unit of matter

The moisture content of air

The process by which certain gases trap heat that radiates from the earth.

The number of molecules of a substance in a mixture for every 1 million molecules in that mixture.

The lower layer of the atmosphere, where the concentration of the air is the SAME as the air at sea-level

two or more atoms linked together to make a substance with unique properties

The upper level of the atmosphere where the concentration of the air is very DIFFERENT from the air at sea-level

If you wanted to measure an object’s volume, what metric unit would you use?

If an object has a mass of 66 g, what is its mass in kg?

How many centimeters are in 32.6 meters?

A metal plaque by the front entrance to our nation’s Capitol in Washington D.C. commemorates the building’s completion in 1826. The plaque is bluish-green in color. What kind of metal is the plaque made of?

If the humidity increases over the course of four days, which day will feel the hottest? a. Day 1

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