Earth Science

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4 sub-topic for earth science

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Geology

Oceanography

Meteorology

Astronomy

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A method used by the scientist to tell the Earth's age

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Radioactive Dating

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Scientist who study plants and animal fossils

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Paleontologists

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Meterials that can prevent decay

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Ice and Amber

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Geologic time up to 600 millions years ago is

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Precambrian Era

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What are the Era in geologic time scale?

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Pre-Cambrian Era

Paleozoic Era (Ancient life)

Mesozoic Era (intermediate life)

Cenozoic Era (Recent life)

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Organisms found in Precambrian Era includes:

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Algae, sponges and worms.

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a division of time that is a subdivision of a period and is itself subdivided into ages, corresponding to a series in chronostratigraphy

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Epochs

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7 periods of Paleozoic

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●Cambrian

●Ordovician

●Silurian

●Devonian

(European: Caboniferous Period) ●Mississippian ●Pennsylvanian

●Permian

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Animals with skeleton found in what geologic time scale (Eon-Era-Period-Epochs)

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Phanerozoic Eon - Paleozoic Era - Cambrian Period

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The era lasted (297-250 M yrs ago)

Period lasted (542-488 M yrs ago)

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Geologic time scale where explosion takes place (Eon-Era-Period-Epochs)

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Phanerozoic Eon - Paleozoic Era - Cambrian period

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The era lasted (297-250 M yrs ago)Period lasted (542-488 M yrs ago)

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The enumeration of geologic time units is based on

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Stratigraphy

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It describes the surface features of an area or the "lay of the land"

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Topography

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What are the materials found on the earth's crust? Give 6

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Silicon, oxygen, aluminum, calcium, sodium, and potassium

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What are the solid rocks found in crust?

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Igneous, sedimentary, and metamorphic rocks

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What is the two major section of the crust?

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Continental crust

Oceanic crust

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The floating crust then exerts a downward force on the mantle which is balanced by an upward force by the mantle on the crust. This balance is called

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Isostasy

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American geologists who proposed that the ocean floors are widening

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Harvy H. Hess

Robert S. Dietz

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What is the name called for submerged ancient volcanoes that once were above ocean surface but later sank below it as the underlying crust moved away?

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Guyots

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What are the three fossil fuels?

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Petroleum

Coal

Natural gas

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It is the periodic rise and fall of the sea level

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Tides

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In what layer of atmosphere where weather takes place?

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Troposphere

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In what layer of the atmosphere where we find a high concentration of zone?

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Stratosphere

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In what layer of atmosphere where air cools as a result of the lack of ozone?

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Mesosphere

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In what layer of atmosphere where the air is very thin and cold, it is where the radio waves reflects back to earth and makes long-distance broadcast possible?

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Ionosphere

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What are the Eons in geologic time scale?

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Hadeon

Archaeon

Proterozoic

Phanerozoic

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What are the period under Mesozoic Era?

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Triassic

Jurassic

Cretaceous

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What are the period under Cenozoic Era?

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Paleogene

Neogene

Quartenary

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What are the epochs under Paleogene Period?

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Paleocene

Eucene

Oligocene

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State the epochs under Neogene Period?

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Miocene

Pliocene

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What are the epochs under Quarternary Period?

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Pleistocene

Holocene