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
   • 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?

   • Warm, dry air
   • Cold, moist air
   • Cold, 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
   • Cold, dry air
   • Cool, moist 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 high-pressure center
   • A warm front
   • A stationary front
   • A cold 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?

   • The edge of a cloud
   • A cold front
   • 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 warm front
   • A stationary front
   • A state border
   • A cold front
7. 7.

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

   • Clouds and rain or snow
   • Nothing special; L stands for light
   • Calm, dry air
   • Clear, sunny skies
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
   • Up, but no clouds can form
   • Down, drying out the sky
   • Nowhere; the air stays still
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 dry
   • Hot and moist
10. 10.

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

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