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, dry air
   • Warm, humid air
   • Cold, moist air like ocean 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?

   • Warm, humid air
   • Warm, dry air
   • Cold, moist air
   • Cold, 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?

   • Cool, moist air
   • Cold, dry air
   • Hot, humid air
   • Hot, 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 cold front
   • A high-pressure center
   • A warm 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
   • A warm front
   • The edge of a cloud
   • A cold 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 cold front
   • A warm front
   • A state border
7. 7.

   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
8. 8.

   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?

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

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

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