What is the name of the layer of the atmosphere closest to the earth, where weather occurs?

Scroll up until you find cirrus clouds. What elevation do they form? Round to the nearest mile.

Keep scrolling up, what protective layer occurs at 14.9 miles above sea level?
Scroll up to 33.8 miles above sea level.
What does the mesophere have a higher concentration of due to meteors being vaporized in this layer of the atmosphere?

Just above 33.8 miles, what type of clouds occur when water vapor freezes around dust from meteors?

Continue to scroll up through the atmosphere.
What phenomenon occurs at 51.5 miles above sea level?

As we make out way into the thermosphere, go to 109.9 miles above sea level.
Why would you freeze in the thermosphere even though temperatures reach up to 4,500 degrees fahrenheit?
Predict: How high up from sea level, do you think the aurora occurs?

Scroll up in the atmosphere until you find the aurora. What is the elevation that it occurs at? Round to the nearest mile.

What is something interesting you learned on your way up?
What man made object do you find 249 miles above sea level?

Scroll all the way to the top! How high up is it? Round to the nearest mile.
Predict: Are we at the end of the atmosphere?
Where do you think space begins and the atmosphere ends?
What do you find up there?