★My First Semester Top 20 List★

♪My Top First Semester Top 20 List♬



  • 1. Metamorphic rocks are made with HEAT and/or pressure
  • 2. Sedimentary rocks are formed with weathering,erosion, deposition, compaction, and cementation
  • 3. Igneous rocks are formed when lava or magma cools

Paleontology/Geologic Time          

  • 4.Absolute Age is the number of years since the rock was formed
  • 5.Relative Age is the age of a rock compared to the age of other rocks.
  • 6.Law of Superposition states that the the oldest layer of rock is at the bottom.

          Energy Resources/Conservation

  • 7. Nonrenewable resources are resources that are eventually going to run out.(EX: Natural gas, coal, nuclear energy, etc)
  • 8. Renewable resources are resources that are unlikely to run out. (EX: fish, solar energy, wood, etc)
  • 9. Scientists are looking new energy sources that produce less pollution, renewable, and reliable.

          Earth’s Interior

  • 10. The order of Earth’s layers are crust, mantle, and core (outer core and inner core).
  • 11. Continental crust is thicker than oceanic crust.
  • 12. Continental crust is made of mostly basalt while oceanic is made out of granite.

          Plate Tectonics

  • 13.There are three types of boundaries (divergent, convergent, and transform boundary)
  • 14. 260 millions ago, earth’s continents moved to form one big chunk of landmass called Pangea.
  • 15. Plate tectonics is theory that pieces of Earth’s lithosphere are in constant motion.

          Weathering, Erosion, Deposition, and Soil

  • 16. Weathering is breaking down of sediment
  • 17. Erosion is carrying away of sediment
  • 18. Deposition is dropping off of sediment
  • 19. Soil is made up of air,minerals, water, and weathered bedrock.
  • 20. Soil has 5 layers, or horizons.

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