Active River

Active River

by Restie Carullo

Fill in the Blanks

​Six million years ago, the Colorado River began carving through rock to form the Grand Canyon. Today the river has carved through 1.6 km of rock.

​Before the Grand Canyon was formed, the land was flat. Then the rock in the area began to lift upward because of plate tectonics. As Earth's crust lifted upward, water began to run downhill. The moving water cut into the rock and started forming the Grand Canyon.

​The Active River In Action

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​Over millions of years, water cut into rock through the process EROSION.

​Water is the main force in forming the grand canyon and in changing the Earth's landscape.

Multiple Choice

evaporation ________ energy

• consumes

• releases

Atmospheric Pressure and Temperature

Multiple Choice

Can atmospheric pressure have an effect on temperature?

• Yes

• No

​Humidity: amount of water vapor in the air

​-If your air space is colder you can get fewer molecules of water vapor in the air.

-If the temperature is hot, you can get more water vapor in the air

​saturation=maximum amount of water in gaseous phase

Multiple Choice

Is condensation possible without any surface where water could attach itself to?

• Yes

• No