Weather & Climate Lessons 3,4,5 SDL

What happens to air as it heats up?

• It becomes heavier

• It expands and rises

• It disappears

• It sinks

Why is it colder at high altitudes?

• It is warmer at high altitudes due to increased sunlight.
• The pressure at high altitudes traps heat more effectively.
• It is colder at high altitudes because the air is thinner and less able to retain heat.
• High altitudes have more humidity, which keeps it warm.

How does temperature change as you move higher in the atmosphere?

• It stays the same
  

• It gets warmer

• It gets colder

• It changes randomly

Why do mountaintops have snow even when areas at lower elevations are warm?

• They are closer to the clouds

• The air is colder at higher altitudes

• The wind cools the mountains

• The Sun does not reach them

What is hail made of?

• Hail is made of layers of ice.
• Hail is made of dust particles.
• Hail is made of water vapor.
• Hail is made of snowflakes.

What is needed for hail to form?

• Warm, still air

• Light winds and a clear sky

• Strong updrafts and cold temperatures at high altitudes

• Heavy rainfall

During a science class, Charlotte asked, 'Which of these best shows the correct sequence that forms hail during a typical storm?'

• rain falls --> freezes --> melts

• snow falls --> melts --> freezes again

• snow falls --> melts --> stays melted

• rain falls --> freezes --> gets blown back up --> melts --> falls again --> refreezes --> repeats multiple times

What causes hail to form?

• Hail forms when raindrops freeze in warm temperatures.

• Hail forms when water droplets collide with dust particles in the atmosphere.

• Hail forms when water droplets in a cloud get very cold and collide with other water droplets.

• Hail forms when snowflakes in clouds melt and then refreeze.

As altitude increases, temperatures

Why does hail grow in size before falling to the ground?

• Hail grows in size due to updrafts in thunderstorms that allow it to get layers of ice before falling.

• Hail is created by volcanic eruptions.
• Hail forms only in winter conditions.
• Hail grows due to high temperatures in summer.