Define It
Air Pollution Facts
Experiment with It
Water, Water Everywhere
Grab Bag
100

The moisture content of air.

What is humidity?

100

Name any air pollutant as noted in the text book.

What are sulfur oxides, nitrogen oxides, ozone, OR carbon monoxide? (Any one of these will do.)

100

When water evaporates, it does this to the surface it is touching.

What is cools it?

100

This is more humid -- (a) a rainforest, OR (b) the Sahara desert.

What is (a) a rainforest?

100

This cools you down when it evaporates, taking energy from your skin.

What is sweat?

200

Process by which certain gases (water vapor, carbon dioxide, & methane) trap heat that radiates from earth.

What is the greenhouse effect?

200

This is a natural air pollutant as noted in the text book.

What is volcanic activity (sulfur & nitrogen oxides) OR a lightning bolt (nitrogen oxides)? (Any one of these will do.)

200

This happens when you cover a burning candle with a jar.

What is the flame goes out?

200

A bathing suit dries faster in (a) a rainforest, OR (b) a desert.

What is (b) a desert?

200

The percentage of oxygen in dry air.

What is 21%?

300

Number of molecules/atoms of a substance in a mixture for every 1 million molecules/atoms in that mixture.

What is parts per million?

300

Burning this type of resource produces sulfur oxide pollutants.

What is coal, oil, wood, OR natural gas? (Any one of these will do.)

300

This happens when you add oxygen to a jar over a burning candle.

What is the flame burns higher, faster, & longer?

300

It is more humid when there is (a) fog, OR (b) a long, steady rain.

What is (b) a long, steady rain?

300

This gas makes up the majority of the air we breathe.

What is nitrogen?

400

The mass of water vapor contained in a certain volume of air.

What is absolute humidity?

400

Device coal-burning plants install in smokestacks to help clean sulfur oxides out of the gases produced by burning coal.

What are "scrubbers"? (Scrubbers clean using limestone.)

400

Humans and most life forms need this to live because the chemical reactions that supply energy for our bodies are combustion reactions.

What is oxygen? (Oxygen is necessary for combustion.)

400

When the temperature is the same on two days, but you feel cooler on the 2nd day, this day is more humid.

What is the 1st day?

400

The percentage of nitrogen in dry air.

What is 78%?

500

The mass of water vapor in the air at a given temperature compared to the maximum the air can hold at that temperature. (A ratio/percentage compared to 100% saturation.)

What is relative humidity?

500
Device introduced in 1975 that converts most of the carbon monoxide produced by automobiles to carbon dioxide, reducing air pollution.

What is a catalytic converter?

500

Adding oxygen to a combustion reaction is: (a) safe, or (b) risky.

What is (b) risky?

500

When you put a glass of water outside in 100% humidity, this much water evaporates from the glass.

What is none?

500

Ozone in the ozone layer is considered an essential substance because it blocks this threat.

What are the sun's ultraviolet rays?