Page 186 - Science Course 3 (Book 2)
P. 186
Mo12-L4a: What is a Solar Eclipse?
When the Moon’s shadow appears on Earth’s
surface, a solar eclipse is occurring. Key Concept
What is a Solar Eclipse?
Why does a solar eclipse occur only during a new
moon?
During a total solar eclipse, the Moon appears to
cover the Sun completely. You can only see a total
solar eclipse from within the Moon’s umbra.
You can see a partial solar eclipse from within the Moon’s much larger penumbra.
The Sun’s appearance changes during an eclipse as the moon moves in the sky.
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