00:00 - 02:13
2m 13s
Hannah instructs the group to go down into the chasm, as it may be their only hope out of the cave. Professor Anderson is the first to climb down, and Sean follows but takes much longer, as he is frightened. During the descent, Professor Anderson notices some metamorphic rocks and tells Sean about them. He loses his balance and is put into what he initially thought was a perilous situation.
Video Transcript
Related Clips
Phil walks us through the different layers of the atmosphere. He explains what we can expect to find at each layer and the concentration of air molecules at each level.
Lindy visits Kyle's house and is delighted because it's a greenhouse. Kyle states that he figured out how to set it up.
Bill Nye explains why it gets colder as one travels up through the atmosphere. He uses miniature replicas of a city and a mountain to support his explanation. Bill also briefly touches upon the lapse rate.
Lois removes the krytonite to save Superman. Superman is weak but flies above the clouds to take in energy from the Sun and recharge.
02:21
This beginning scene of Wall-E depicts a post-acopalyptic Earth. The Earth has an enormous amount of environmental pollution and trash. There is little life in sight besides Wall-E and a cockroach.