Air masses, fronts and the weather they bring

Grade 6 Science Worksheet - Building Confidence

Circle the best answer.

1. 1.

   Ari's weather map shows an air mass forming over snowy northern Canada. What kind of air does it hold?

   • Hot, dry air
   • Cold, moist air like ocean air
   • Warm, humid air
   • Cold, dry air
2. 2.

   Warm ocean". An air mass forms over the warm Gulf of Mexico. What kind of air does Bo expect it to hold?

   • Cold, moist air
   • Cold, dry air
   • Warm, dry air
   • Warm, humid air
3. 3.

   An air mass sits over the hot deserts of the southwestern United States and northern Mexico. What is it like, says Kira?

   • Hot, dry air
   • Hot, humid air
   • Cool, moist air
   • Cold, dry air
4. 4.

   Weather map with a blue line whose triangles point east. On Jun's weather map, a blue line has triangles pointing toward the east. What does the line show?

   • A warm front
   • A high-pressure center
   • A cold front
   • A stationary front
5. 5.

   Weather map with a red line whose half-circles point north. A red line with half-circles crosses Luz's weather map. What does it show?

   • A line of low pressure
   • The edge of a cloud
   • A cold front
   • A warm front
6. 6.

   Weather map with a line of alternating blue triangles (one side) and red half-circles (other side), pointing opposite ways. A line on Milo's map has blue triangles on one side and red half-circles on the other, pointing opposite ways. What is it?

   • A state border
   • A warm front
   • A stationary front
   • A cold front
7. 7.

   An L at the ground with arrows left blank above it. Under a low-pressure center, which way does the air move, by Ren's notes?

   • Nowhere; the air stays still
   • Up, cooling and forming clouds
   • Down, drying out the sky
   • Up, but no clouds can form
8. 8.

   Map with an arrow from northern Canada down into Minnesota, labeled continental polar. In winter, a continental polar air mass moves into Minnesota. What weather does Tala expect?

   • Hot, dry days
   • Cold, very damp days
   • Warm, humid days
   • Cold, dry, clear days
9. 9.

   Map with an arrow from the North Pacific Ocean into Washington State, labeled maritime polar. Air from over the cool North Pacific Ocean blows into Seattle. What is that air like, says Zee?

   • Cool and very dry
   • Hot and moist
   • Cool and moist
   • Hot and dry
10. 10.

    In summer, maritime tropical air flows north from the Gulf into Georgia. What does Esme feel outside?

    • Cold, dry air
    • Warm, very dry air
    • Warm, sticky, humid air
    • Cool, crisp air