NGSS · Life Science · Grades 6–8 (Middle School)

MS-LS1-3 Body Systems & Subsystems

Use argument supported by evidence for how the body is a system of interacting subsystems composed of groups of cells.

Kentucky 7-LS1-3 uses the same wording.

Teach MS-LS1-3 with a mystery

Systems in Space cover
Science Unlocked lesson set Systems in Space After months on the space station, astronauts come home weak, wobbly, and dizzy — some can’t even stand up on their own. Why — and is it only their muscles? 1 week · $3.00 · Grades 6–8 See what’s inside
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More Life Science standards

MS-LS1-1Cells: Living Things Are Made of CellsPhenomenon: Built From CellsMS-LS1-2Cells: Cell Parts & Organelles ModelPhenomenon: Cell Parts at WorkMS-LS1-4Animal Behaviors & Plant Structures for ReproductionPhenomenon: Raising the OddsMS-LS1-5Genetic & Environmental Factors in GrowthPhenomenon: Growing GiantsMS-LS1-6Photosynthesis: Matter & EnergyPhenomenon: Garden in a BottleMS-LS1-7Cellular Respiration & Food MoleculesPhenomenon: The Atom Shuffle