Rubik's Cube

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Certain (good quality) study websites can be immensely helpful

(a)    While you’re taking a course (the sites may serve as virtual tutoring), or

(b)   As brush-up exercising for college entrance exams or general college prep.

Below please find a handful of Science and Math learning websites to browse:

http://www.chemtutor.com/
Chemistry help.

http://www.purplemath.com/
Algebra help.

http://mathworld.wolfram.com/
Encyclopedia of math information.

http://www.khanacademy.org
Tutorial videos on this popular site include Math and Science subjects.

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