Abeka 5th Science Test 8 p2 L115

The broad, flat top of a cumulonimbus cloud is called an _______ top.

• anvil
• cirrus
• stratus
• cumulus

The type of storm that packs the most destructive power into the smallest space is the _______.

• hurricane
• typhoon
• blizzard
• tornado

When opposite electric charges build up in very tall clouds, ______ is produced.

• hail
• thunder
• lightning
• rain

If a tornado is spotted, meteorologists issue a tornado _________.

• alert
• advisory
• notification
• warning

The thin channel of charged air through which a lightning bolt can travel is the ______.

• step leader

• electric arc
• anvil top

• static discharge

The rapid expansion of superheated air causes shock waves that we hear as ________.

• sound wave
• thunder

• air pressure
• lightning

The calm region of very low air pressure in the center of a tornado is called the ____.

• vortex
• core
• funnel
• eye

The row of thunderheads that builds up in the front of advancing cold air is called a _______ line.

• cloudburst
• squall
• front
• storm

Lightning bolts that do not come in contact with the ground but remains within the cloud are known as ________ lightning.

• cloud

• sheet

• inter-cloud lightning
• ground lightning

The boundary between two air masses is called a _____.

• ridge
• zone
• front
• valley