From Earth stars appear very dim, but in space they are quite bright. From Earth we are seeing the stars A) absolute magnitude
B) apparent magnitude
C) available magnitude
D) absent magnitude

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The chemical reactions lab we did is typically called a "copper plating lab,  because the acid solution cleaned the pennies and made the copper look shinier;   the acid solution cleaned the paperclips and made them look like pennies;   &   the copper from the pennies was removed, and then added to the paperclips. 

Cardiac muscle causes movement in the bone.