Share Earth's Subsystems
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Give an example of how the biosphere and the atmosphere interact
Give an example of how the biosphere and the hydrosphere interact
Give an example of how the hydrosphere and the geosphere interact
Give an example of how the biosphere and the geosphere interact
What is a system?
Small parts that work together to create something larger
What are the 4 subsystems of earth?
hydrosphere, geosphere, biosphere, atmosphere
What causes day and night?
the rotation of earth on its axis
How much of earth is lit up at one time?
half
It is day time here. What is it directly across the world from us, day or night?
Night
How long does it take for the Earth to make one full rotation?
24 hours or 1 day
How does the moon get its light at night?
Reflection from the sun
When can you see the moon?
Day and night
True or false: When the moon looks different each night, it is actually changing shape.
False - different amounts are just being illuminated but it always stays the same shape
How old is the moon?
about 4.5 billion years
What is the diameter of the moon?
3,474 kilometers
What is the radius of the moon's orbit around Earth?
384,000 kilometers
