Water that is very cold and hard is ___.
ice
rain
cloud
snow
The space above the earth is the ___.
cloud
underground
sky
ground
Not dangerous is ___.
unsafe
dirty
safe
clean
A very large body of salt water is the ___.
river
ocean
sky
lake
A long moving body of water is a ___.
lake
ocean
ground
river
Soft white ice that falls from the sky is ___.
rain
cloud
snow
ice
White or gray shapes in the sky are ___.
cloud
sky
rain
snow
Not clean is ___.
dirty
clean
safe
ice
Water that tastes salty is called ___.
river
salt water
fresh water
lake
Dangerous or not safe is ___.
dirty
unsafe
safe
clean
Water that falls from clouds is called ___.
river
snow
cloud
rain
Not dirty is ___.
clean
dirty
safe
unsafe
The surface of the earth is the ___.
ground
river
sky
cloud
To change from ice to water is to ___.
snow
clean
melt
freeze
Under the surface of the earth is ___.
river
ground
underground
sky
A large area of water surrounded by land is a ___.
river
ocean
cloud
lake
Water that is clean and not salty is ___.
ice
fresh water
dirty
salt water