Earth Science

Earth Science

1. Bombardment

   • About 4 to 3.8 billion years ago a period of intense comet.

2. Geological Time Scale

   • time scale system of chronological dating that relates geological strata to time.

3. Layers of the Earth

   • The Crust,The Mantle,Convection Currents, Outer Core Inner Core.

4. Stratigraphy

   • relative position of strata and their relationship to the geological time scale.

5. Fossil Record

   • the remains or imprints of the organisms.

6. Relative Dating

   • the science of determining the relative order of past events

7. Absolute Dating

   • process of determining an age on a specified chronology

Images and files in the map