Science

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Across
  1. 2. __________ is an air mass that forms over oceans and is humid
  2. 5. rapidly whirling, funnel shaped cloud that reaches down from a storm cloud to touch the earth's surface
  3. 6. electrical charges that build up in the clouds
  4. 7. A violent disturbance in the atmosphere
  5. 9. When a warm air mass is caught between 2 cold air masses and is forced upward it is called_________
  6. 11. A_______air mass is a huge body of warm air with low air pressure
  7. 12. A ______ front is when cold air moves underneath warm air
Down
  1. 1. ________ front is when a cold and warm air mass meet and neither has enough force to move the other
  2. 3. A _______ air mass is a huge body of cold air with high air pressure
  3. 4. ___________ is an air mass that forms over land and is dry
  4. 8. a tropical storm
  5. 10. A ______ front is when warm air moves over the cold air