The Junk in the Air Ain’t cake but it comes in layers Name that gasProperties of Air 100 200 400...

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Transcript of The Junk in the Air Ain’t cake but it comes in layers Name that gasProperties of Air 100 200 400...

The Junk in the Air Ain’t cake but it comes in layers Name that gas Properties of Air

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Photochemical smog is created by the action of

this on chemicals.

What is sunlight?

Category 1Question 1

Harmful substances in the air, water, or soil are called this.

What are pollutants?

Category 1Question 2

Particles of carbon that enter the air when wood or coal is burned are called this.

What is soot?

Category 1Question 3

Acid rain is caused by the burning of coal that contains

a lot of this.

What is sulfur?

Category 1Question 4

True or False?Over the past 30 years, air quality in the United States

has improved.

If false, what word makes it true?

True

Category 1Question 5

The warmest layer of the atmosphere.

What is the thermosphere?

Category 2Question 1

The layer of the atmosphere that reflects radio waves.

What is the ionosphere?

Category 2Question 2

The stratosphere helps protectEarth from too much sun because it contains this.

What is ozone?

Category 2Question 3

The four main layers of the atmosphere are classified

according to changes in this.

What is temperature?

Category 2Question 4

True or False?The aurora borealis occurs in

the ionosphere.

If false, what makes it true?

True

Category 2Question 5

The percentage of oxygen in the atmosphere.

What is 21 percent?

Category 3Question 1

A gas in the atmosphere that varies between zero and four

percent in different places.

What is water vapor?

Category 3Question 2

Is the most abundant gas in the atmosphere.

What is nitrogen?

Category 3Question 3

True or false?Fires need nitrogen to burn.

If false, what word makes it true?

False, oxygen.

Category 3Question 4

True or false? Altitude is the condition of Earth’s atmosphere at a particular time and place.

If false, what word makes it true?

What is weather?

Category 3Question 5

The amount of mass in a givenvolume of a substance.

What is density?

Category 4Question 1

As the density of air decreases, its pressure…

What is decreases?

Category 4Question 2

Air pressure is measuredin this type of unit.

What is in millibars?

Category 4Question 3

The force pressing on an area or surface.

What is pressure?

Category 4Question 4

Category 4Question 5

Air pressure decreases as altitude does this.

What is increases?