Nile River (GREEN)

Which is the first step in the water cycle?

• precipitation

• evaporation

• condensation

Evaporation is when water is changed from a liquid to a ...

• gas

  (water vapor)

• liquid

• solid

  (ice)

When water vapor comes together to form clouds.

• condensation

• precipitation

• evaporation

Water droplets that fall to Earth as rain, snow, or hail.

• precipitation

• condensation

• runoff

Rivers are which part of the water cycle?

• runoff

• source

• precipitation

Ancient Egyptians used papyrus to make ...

• paper to write on

• boats to sail on the Nile

• tools to build the pyramids

Ancient Egyptian writing system.

• hieroglyphics

• cuneiform

• papyrus

Where the river starts is called the ...

• source

• mouth

• confluence

Where a river ends is called its ...

• source

• mouth

• cataract

Sand and soil carried along by rivers.

• silt

• source

• wadi