True or False:
Many clouds are made of ice crystals.
What is...
true?
This is rain that freezes before it hits the ground.
What is...
sleet?
These form when air currents are different temperatures.
What are...
convection currents?
This is a quick and destructive change in the environment not caused by people.
What is...
a natural disaster?
This tool measures temperature.
What is...
a thermometer?
Snow, sleet, and hail are all examples of this.
What is...
precipitation?
A forecaster predicting the weather would find this most helpful:
a. average yearly precipitation
b. today's barometric pressure
c. temperature changes in one month
d. how often natural disasters occur
What are...
c. the temperature changes in one month?
This is the condition when fall leaves will decay the fastest:
a. when air temperatures are warm and the ground is dry
b. when air temperatures are cool and the ground is dry
c. when air temperatures are cool and the ground is wet
d. when air temperatures are warm and the ground is wet
What is...
d. when air temperatures are warm and the ground is wet
This type of severe weather can be hundreds of meters wide and travel great distances in minutes or hours.
What is...
a tornado?
This tool measures air pressure?
What is...
a barometer?
This forms in the clouds before falling back down to earth.
What is...
condensation?
This is what a severe storm warning means.
What is...
a storm has already formed?
Tropical, temperate, and polar describe climate zones due to this.
What is...
latitude?
This type of severe weather can last for days, possibly hitting several locations. They can result in huge waves that cause severe damage and flood the coast.
What are...
hurricanes?
This tool tells which way the wind is blowing?
What is... a wind vane?
This is what happens to ocean water that is heated by the sun.
What is...
it evaporates?
This is the state of the atmosphere at a given time and place.
What is...
the weather?
This is the amount of moisture in the air.
What is...
humidity?
When a tornado or a hurricane are approaching, the National Weather Service issues one of these.
What is...
a watch or a warning?
This tool measures wind speed.
What is... an anemometer?
This is water flowing downhill into streams or rivers.
What is...
runoff?
This is the rising and sinking of matter in a circular pattern due to differences in temperature.
What is...
a convection current?
The latitude of a region has the greatest effect on this.
What are...
climate zones?
Your family might have one of these in case a hurricane is coming too close to where you live.
What is...
an evacuation plan?
This tool measures atmospheric pressure, temperature, humidity, and wind speed.
What is... a weather balloon?