Chapter 2, Lesson 1

True or False: The crust is the thickest layer of the Earth.

The glowing-hot lava that comes from the mantle and flows out of the mouth of a volcano is called....

Earth completes a full rotation every

______a type of large ecosystem with similar life-forms and climates.

What does the tilt of the Earth create.

What are the subsystems of the physical systems?

How many major subsystems are within the physical systems.

True or False: Because of the tilt, the Earth receives different amounts of direct sunlight.

Movement of ______ and ______ help circulate the sun's heat.

_______ is the average weather conditions in a region or an area over a longer period.

Temperature________ as elevation increases.

High-Latitude areas receive more direct sunlight then Low-Latitude areas.

Warm air masses tend to form near the.....

June 21st and December 22 are the shortest and longest days of the year. What are the name of these days?

The Earth is tilted____ degrees on its axis.

What are 3 layers of the Earth?

Winds are the result of changes in the air pressure.

The North and South Poles can receive 6 months of little or no sunlight.

Tropical, Humid Temperate, Cold Temperate, Polar and High Mountain are names for....

The core is divided into two parts called...