Air masses, fronts and the weather they bring

Grade 6 Science Worksheet - Building Confidence

Circle the best answer.

1. 1.

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

   • Cold, dry air
   • Warm, humid air
   • Cold, moist air
   • Warm, dry air
2. 2.

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

   • Cold, dry air
   • Hot, dry air
   • Hot, humid air
   • Cool, moist air
3. 3.

   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 stationary front
   • A high-pressure center
   • A cold front
   • A warm front
4. 4.

   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
   • A warm front
   • The edge of a cloud
   • A cold front
5. 5.

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

   • A cold front passing
   • Heavy snowstorms
   • Clouds and steady rain
   • Mostly clear and calm
6. 6.

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

   • Nothing special; L stands for light
   • Clouds and rain or snow
   • Clear, sunny skies
   • Calm, dry air
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
   • Down, drying out the sky
   • Up, but no clouds can form
   • Up, cooling and forming clouds
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?

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

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

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

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