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Chemical and Solar Cells loading

Introduction to different sources of voltage.

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Explore connections in math and science

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Discover related concepts in Math and Science.
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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.
  • Real World Application
    Lithium Lasts Longer

    Lithium Lasts Longer

    by CK-12 //basic
    Learn how lithium-ion batteries work and their pros and cons.
    MEMORY METER
    This indicates how strong in your memory this concept is
  • Real World Application
    Battery in Your Ear

    Battery in Your Ear

    by CK-12 //basic
    Learn how structures in the human ear act like a tiny battery, the role this battery plays in hearing, and other ways it might be used.
    MEMORY METER
    This indicates how strong in your memory this concept is
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