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?

   • Cold, moist air like ocean air
   • Hot, dry air
   • Cold, dry air
   • Warm, humid 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
   • Warm, humid air
   • Cold, dry air
   • Warm, dry 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, humid air
   • Hot, dry 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 stationary front
   • A cold front
   • A high-pressure center
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 cold front
   • The edge of a cloud
   • A line of low pressure
   • 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 stationary front
   • A warm front
   • A state border
   • A cold front
7. 7.

   A big blue H sits over Noah's town on the weather map. What weather is most likely?

   • Mostly clear and calm
   • Clouds and steady rain
   • A cold front passing
   • Heavy snowstorms
8. 8.

   A red L sits right over Pia's town on the weather map. What weather is most likely?

   • Clouds and rain or snow
   • Calm, dry air
   • Nothing special; L stands for light
   • Clear, sunny skies
9. 9.

   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?

   • Down, drying out the sky
   • Up, cooling and forming clouds
   • Nowhere; the air stays still
   • Up, but no clouds can form
10. 10.

    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?

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