NGSS · Earth & Space Science · Grades 6–8 (Middle School)

MS-ESS1-4 Geologic Time Scale & Rock Strata

Construct a scientific explanation based on evidence from rock strata for how the geologic time scale is used to organize Earth’s 4.6-billion-year-old history.

Teach MS-ESS1-4 with a mystery

The Missing Billion Years cover
Science Unlocked lesson set The Missing Billion Years At the bottom of the Grand Canyon you can touch dark rock about 1.75 billion years old with one hand and the sandstone on top of it, only about 510 million years old, with the other. 1 week · $3.00 · Grades 6–8 See what’s inside
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BundleComing soonEarth's History & Plate Tectonics Bundle$10.00Gr 6–8
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More Earth & Space Science standards

MS-ESS1-1Moon Phases, Eclipses & SeasonsPhenomenon: Dark at NoonMS-ESS1-2Gravity in the Solar System & GalaxiesPhenomenon: The Planet Found With MathMS-ESS1-3Solar System ScalePhenomenon: The Seven-Planet SqueezeMS-ESS2-1Rock Cycle: Earth's Materials & EnergyPhenomenon: The Seafloor SummitMS-ESS2-2Geoscience Processes Shape Earth's SurfacePhenomenon: Slow, Then SuddenMS-ESS2-3Plate Tectonics: Fossils & ContinentsPhenomenon: Fossils on the Ice