1). Clouds are formed by?
A) cool air rising
B) water vapor condensing
C) lightning
D) snow
E) hair

2). High, feathery white clouds made of tiny pieces of ice are called?
A) stratus
B) cumulus
C) cirrus
D) nimbus
E) sinks

What clouds form in sheets or layers and spread out over the sky?
A) cumulus
B) dew
C) stratus
D) nimbus
E) houses

Most of the earth's water is?
A) in the clouds
B) in the ocean
C) under the ground
D) in holding tanks for us to use
E) in a glass

5). What is the driving force of the water cycle?
A) gravity
B) the moon
C) the sun
D) jonas brothers
E) center of the earth