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38 Cards in this Set

  • Front
  • Back
small planet that orbited the sun in the early universe
having an opinion that is contradictory to the established religious beliefs
section of stars, gas, and dust that contributes to the universe
small celestial body that revolves around the Sun
space stone that has fallen to Earth from outer space
northern, southern, western, or eastern half of the Earth as divided by the Equator and Prime Meridian
Scientific Heresy
having a scientific belief contradictory to the established religious beliefs
Darwin's theory of Natural Selection
a person who studies the Earth
Ocean Trenches
low places in the ocean
Inner Core
the small, magnetic core of the Earth that gives us our magnetic field and axis
Outer Core
the layer of Earth around the inner core
the layer of Earth between the crust and the core
Index fossil
a fossil of an organism that is known to have lived in a certain geological time, used to date the rock layer in which it is found and other layers
the outer layer of the Earth
Continental Shelf
the part of a continent that gradually slopes down in shallow water until a drop off
Continental Drift
the drift of continents from plate tectonics
an area of land lower than places around it
the transfer of heat in a gas or liquid
the gas envelope that surrounds the Earth
the emission of elements from one body and absorbance of them by another body
the sphere around the Earth that pushes aside harmful radiation from the sun
the outer layer of the Earth containing the plates
the layer directly under the lithosphere, holding up the plates
Plate Tectonics
a theory that says that the lithosphere is divided into tectonic plates which slip, collide, and move around
the molten rock under the Earth's surface from which igneous rock is formed
Subduction zone
the area where one plate slips under another plate
What are the four main layers of the Earth?
crust, mantle, inner core, outer core
How old is the Earth?
4.6 billion years old
How long ago were the continents formed?
100 million years ago
How did water get to earth?
Ice bearing comets contributed heavy water; volcanic steam contributed the rest
How much of the Earth's surface is water?
HARD!!!List the continents smallest to largest
Australia Europe Antarctica
South America North America Africa Asia
what are the world's largest landmasses?
what features are found on all continents?
mountains and lakes
HARD!!!Four geological eras, time span, life
Precambrian era was the first 4 bil. yrs with single celled life forms. Paleozoic era was next 320 mil. yrs. with trilobites, marine animals, amphibians, and trees. Mesozoic era was next 294 mil. yrs. with marine reptiles, dinosaurs, and small mammals. Cenozoic era was from 66 mil. yrs. ago to now, with large mammals and humans.
Radiocarbon Dating
method of dating old things by seeing how much of a certain kind of carbon is in them
Sea vs. Ocean?
Sea = small, partly surrounded by land
Ocean = large, uninterrupted