<meta http-equiv="refresh" content="1; url=/nojavascript/">
Dismiss
Skip Navigation

Interior of the Sun loading

The internal layers of the Sun, which are made of plasma, include the location of nuclear fusion.

loading
Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
Please wait...
Please wait...

Original text