8th Grade Science
  • Home
  • Question of the Day
  • Vocabulary Practice
  • Earth Systems and Resources
    • Weathering, Erosion, Deposition
    • Rock Cycle
    • Earth Layers >
      • Evidence for Earth's Layers
    • Plate Tectonics >
      • Continental Drift
      • Divergent Plate Boundaries
      • Convergent Plate Boundaries
      • Transform Plate Boundaries
      • Hot Spots
    • Evidence for Plate Tectonics
    • Patterns of Earthquakes and Volcanoes
    • Forces inside Earth
    • Catastrophic Events >
      • South Carolina Earthquakes
    • Earth Resources
  • Earth's History and Diversity of Life
    • Geologic Time >
      • Geologic Time Scale
      • Precambrian
      • Paleozoic Era
      • Mesozoic Era
      • Cenozoic Era
    • Law of Superposition & Index Fossils
    • Catastrophic Events
    • Fossil Evidence
    • Fossil Formation
    • Adaptations & Natural Selection
    • Extinction Factors >
      • Endangered Species
  • Earth's Place in the Universe
    • Milky Way Galaxy
    • Expanding Universe
    • Our Sun
    • The Solar System >
      • Mercury
      • Venus
      • Earth
      • Mars
      • Jupiter
      • Saturn
      • Uranus
      • Neptune
    • Celestial Objects
    • Gravity
    • Seasons
    • Sun-Earth-Moon Motion
    • Phases of the Moon
    • Eclipses
    • Tides
    • Space Technology
  • Forces and Motion
    • Force vs. Mass
    • Balanced vs. Unbalanced Forces
    • Inertia
    • Action = Reaction
    • Friction & Gravity
    • Graphing Motion
    • Average Speed
    • Newton's Laws of Motion
  • Waves
    • Matter & Energy
    • Properties of Waves
    • Behavior of Waves
    • Interacting Waves
    • How We See in Color
    • Electromagnetic Technology
  • Rocket Science!
  • Need Help?

The geologic time scale is a record of the major events and diversity of life forms present in Earth's history. The geologic time scale began when Earth was formed and goes on until the present. It divides Earth's long history into units of time.
Picture
Explore a detailed representation of Geologic Time
You can zoom in and out to any geologic time you wish!
Picture
Picture
Online geologic time scale
Picture
Picture
Explore an Interactive Geologic Time Scale
Picture
Explore a Deep Interactive History of Life on Earth
Picture
Picture
Proudly powered by Weebly
  • Home
  • Question of the Day
  • Vocabulary Practice
  • Earth Systems and Resources
    • Weathering, Erosion, Deposition
    • Rock Cycle
    • Earth Layers >
      • Evidence for Earth's Layers
    • Plate Tectonics >
      • Continental Drift
      • Divergent Plate Boundaries
      • Convergent Plate Boundaries
      • Transform Plate Boundaries
      • Hot Spots
    • Evidence for Plate Tectonics
    • Patterns of Earthquakes and Volcanoes
    • Forces inside Earth
    • Catastrophic Events >
      • South Carolina Earthquakes
    • Earth Resources
  • Earth's History and Diversity of Life
    • Geologic Time >
      • Geologic Time Scale
      • Precambrian
      • Paleozoic Era
      • Mesozoic Era
      • Cenozoic Era
    • Law of Superposition & Index Fossils
    • Catastrophic Events
    • Fossil Evidence
    • Fossil Formation
    • Adaptations & Natural Selection
    • Extinction Factors >
      • Endangered Species
  • Earth's Place in the Universe
    • Milky Way Galaxy
    • Expanding Universe
    • Our Sun
    • The Solar System >
      • Mercury
      • Venus
      • Earth
      • Mars
      • Jupiter
      • Saturn
      • Uranus
      • Neptune
    • Celestial Objects
    • Gravity
    • Seasons
    • Sun-Earth-Moon Motion
    • Phases of the Moon
    • Eclipses
    • Tides
    • Space Technology
  • Forces and Motion
    • Force vs. Mass
    • Balanced vs. Unbalanced Forces
    • Inertia
    • Action = Reaction
    • Friction & Gravity
    • Graphing Motion
    • Average Speed
    • Newton's Laws of Motion
  • Waves
    • Matter & Energy
    • Properties of Waves
    • Behavior of Waves
    • Interacting Waves
    • How We See in Color
    • Electromagnetic Technology
  • Rocket Science!
  • Need Help?