Abeka 5 Chapter 8 Test

The ______ is the basic cause of all weather.

• Clouds

• Sun

• Moon

• Wind

Scientists who study the weather are called ______.

• meteorologists
• biologists

• geologists
• climatologists

The imaginary line running through the Earth from the North Pole to the South Pole is the​ (a)   .

• axis
• equator
• tilt

The air that we live in receives most of its warmth from the ______.

• sun

• ground

• moon

• clouds

Seasons are determined by the (a)   of the Earth's axis.

• Tilt
• Rotation
• Size
• Orbit

Winds are produced by the ______ differences found on Earth.

• Temperature

• Humidity

• Altitude

Cool air is​ (a)   .

Warm air​ (b)   .

• heavy and falls
• rises

The Earth's surface spins at over ​ (a)   miles per hour.

• 1,000
• 1,000,000
• 10,000

Match each term to its correct description.

• Dew

• The amount of water vapor the air can hold at a given temperature

• Relative humidy

• The lowest possible temperature that air is able to hold all of its water vapor

• Condensation

• Water vapor that condenses and forms liquid water on the ground

• Dew point

• Water vapor that condenses and forms frozen water on the ground

• Frost

• Released water vapor that leaves the air and changes into liquid water

Identify the types of clouds.

1. ​ (a)   : Puffy and bulgy clouds

2. ​ (b)   : Layers of flat clouds

3. ​ (c)   : Wispy, curly clouds very high in the atmosphere

4. ​ (d)   : Sheets of clouds that often produce rain

• Cumulus
• Stratus
• Cirrus
• Nimbus