Lesson 7 (Part 2) "Water & Weather"

Dew forms at the ________, or the temperature at which air is saturated with water vapor.

• water point

• turning point

• dew point

• saturation point

When is the best time for dew to form?

• right before a rainstorm

• at night, as the air cools

• during the day, in the late afternoon

• when it is warm, as water evaporates

Which phenomenon can occur when the temperature drops below the dew point?

• dew

• fog

• humidity

• rain

A cloud is a collection of ________ that you can see.

• warm air particles

• atmospheric bands of energy

• air pollution and bits of pollen

• liquid water droplets or solid ice crystals

Water vapor that crystallizes around the surface of dust particles or other ice crystals produce...

• clouds

• dew

• raindrops

• snowflakes

Based on their altitude in the sky, clouds are divided into which three main groups?

• high, mid, low

• small, medium, large

• thin, puffy, heavy

• light, gray, dark gray

Precipitation, or water that falls from clouds to the ground, is the way that water...

• remains in the atmosphere, creating severe weather fronts.

• enters the atmosphere after evaporating from Earth's surface.

• in the atmosphere makes its way back to Earth's surface.

• in the atmosphere dissolves and makes its way into outer space.

Which statement about precipitation is true?

• Precipitation must become heavy enough for gravity to overcome updrafts holding it aloft.

• Precipitation is extremely light and is forced down to Earth only by downdrafts from storms.

• Precipitation is not influenced by gravity; it is only influenced by temperature and humidity.

• Precipitation is constantly pulled down by gravity, no matter what the weather conditions.

The type of precipitation that reaches the ground depends on the...

• size of the storm cloud.

• time of year.

• temperature of the atmosphere.

• amount of energy the Earth receives from the sun.

When building a wastewater treatment plant, engineers must evaluate possible designs based on what?

• opinions and facts

• votes and decisions

• criteria and constraints

• none of the above