Wk 2 Lesson 3: What happens to air as it cools?

Week 2 Lesson 3

What happens to air as it cools, and why?

Open Ended

Warm Up:

- How does the heated air near the ground move?

- Why does it move that way?

Poll

Where did the water on the outside of the can come from?

• The water inside the can travelled to the outside

• It came from the water vapor in the air

Poll

Why did the water vapor in the air turn from a gas to a liquid?

• As the molecules cooled down they got slower and closer together

• As the molecules cooled down they got faster and farther apart

Poll

What makes evaporation happen faster?

• When water heats up

• When water cools down

Open Ended

What does this graph tell you about how much water vapor can "fit" into the air when it is warm and cool?

Open Ended

Why is RISING WARM AIR important to creating hail storms?

Record BOTH ideas and your partner's ideas

Open Ended

Why is RISING WARM AIR important to creating hail storms?

Record your partner's ideas

Poll

Which type of air holds more water vapor?

• Warm air near ground

• Cold air up in the atmosphere?

Poll

What would result in more condensation...

• Warm air rises and cools down high in the atmosphere

• Cold air already up in the atmosphere continues to be cool

Open Ended

Why is rising warm air important to the formation of hailstorms?

Open Ended

Why is rising warm air important to the formation of hailstorms?

Record your partner's ideas

Open Ended

Cool Down:

How did the activity today show you what happens to rising warm air as it cools?

"In the activity I saw_______ and this showed me that ______"