Science Exam Study Guide

The major cause of air pollution today is

• the Greenhouse Effect
• Soil Erosion
• Burning of Fossil Fuels

What is altitude?

• It measures air pressure.
• The distance above sea level.
• Weight of the column of air pushing down on an area.

Sound travels fastest through which type of medium?

• A solid
• A liquid
• A gas

As frequency increases, the pitch decreases.

• True
• False

Pressure is

• amount of mass in a certain volume
• force pushing down on an area or surface
• pressing down of the weight of air on an area

A continental tropical air mass has the characteristics of

• cold, dry
• warm, dry
• warm, wet

Tags

NGSS.MS-ESS2-5

An example of condensation would be

• water vapor becoming dew
• liquid becoming ice
• ice becoming a liquid

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

How are the layers of the atmosphere divided?

• by the number of air molecules
• by distance from Earth
• by temperature

In science, an educated guess is called a/an

• observation
• conclusion
• hypothesis

Tags

NGSS.MS-PS2-2

Which gas is the most abundant in the Earth's atmosphere?

• nitrogen
• oxygen
• argon