shadow:
The dark shape cast by an object when it blocks light falling on a surface. The dark, central part of the shadow is called the umbra; the surrounding area of partial shadow is called the penumbra.
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Seymour Science Blog
Tuesday March 24, 2020
Home from School? I am Reading Aloud
What a strange time this is for many of us…..home from work and home from school. It is a big adjustment, and I know many of you are missing your friends and your normal routine. Still, it is wise to…
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