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Reactants and Products

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
    Iron to the Rescue

    Iron to the Rescue

    by CK-12 //basic

    Learn about a teen scientist who invented a food storage bag that uses iron to keep food from spoiling.

  • Real World Application
    Stay Warm for Life

    Stay Warm for Life

    by CK-12 //basic

    Learn how a South African teen developed a life jacket liner that uses chemical reactions to produce heat and keep people warm in the water.

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