Ch 9, Les 1-3, 6th Grade Question Preview (ID: 61359)


Weather. TEACHERS: click here for quick copy question ID numbers.

The process by which molecules of liquid water escape the air after becoming water vapor
a) evaporation
b) condensation
c) precipitation
d) humidity

If the air could hold 8 grams of water but only held 4 grams, it would have a relative humidity of
a) 50%
b) 25%
c) 75%
d) 100%

If the dew point is below freezing, the water vapor may
a) change directly into ice crystals
b) always stay as liquid water droplets
c) not condense
d) none of the above

Cumulus means ___ in Latin
a) heap
b) curl
c) high
d) storm

Clouds are classified by their
a) shape and altitude
b) color and shape
c) altitude only
d) weather and shape

Cumulus clouds mean
a) fair weather
b) thunderstorms
c) snow
d) all of the above

If a stratus cloud thickens and produces rain, drizzle, or snow, it's called a ___ cloud.
a) nimbostratus
b) altostratus
c) cirrostratus
d) cumulostratus

The smallest type of rain is called
a) mist
b) drizzle
c) hail
d) sleet

We can measure rain by using a
a) rain gauge
b) anemometer
c) measuring stick
d) all of the above

___ forms when water vapor in a cloud is converted directly to ice crystals.
a) snowflakes
b) sleet
c) hail
d) rain

Ice particles smaller than 5 mm are called
a) sleet
b) hail
c) freezing rain
d) mist

About 10 cm of snow contains about the same amount of water as __ of rain.
a) 1 cm
b) 1 mm
c) 1 inch
d) 5 cm

Many floods occur when the volume in a river...
a) increases so much that the river overflows its channel.
b) decreases so much that the river stops flowing
c) evaporates so much that the rain falls nonstop
d) increases so much and then freezes.

A ___ is a barrier across a river that may redirect the flow of the river to other channels or store floodwaters so they can be released slowly.
a) dam
b) levee
c) bridge
d) psychrometer

Farmers can grow drought-resistant plants to help when drought conditions occur.
a) true
b) false
c)
d)

An instrument with two thermometers that is used to measure relative humidity
a) psychrometer
b) thermometer
c) anemometer
d) barometer

Clouds that form near the ground, often when the ground cools at night after a humid day.
a) fog
b) cirrus
c) cumulus
d) nimbostratus

Clouds that are made of ice crystals and indicate fair weather
a) cirrus
b) cumulus
c) stratus
d) altocumulus

Rain droplets that are betwee 0.05 and 0.5 mm are called
a) drizzle
b) rain
c) mist
d) sleet

Flood waters can be so strong that they can uproot trees and knock down buildings.
a) true
b) false
c)
d)

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