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High School Science Proficiency Review #3 Earth Science
High School Science Proficiency Review #3 Earth Science

... stone A had dates cut into the rock in 1922.   A.  Water enters and leaves Earth during evaporation and precipi‐ Tombstone B had dates cut into the rock in 1892.  tation cycles.  B.  The water present on Earth today is made of the same atoms  but the molecules have been recycled through biologic act ...
Continental Drift 1 The hypothesis that all the continents were once
Continental Drift 1 The hypothesis that all the continents were once

... slowly moves over the asthenosphere, carrying pieces of continental and oceanic crust. ...
P-waves
P-waves

... How do we know about the Earth’s Interior? By studying Meteorites  Direct observation (rocks originating from depth)  Experiments at high pressure  By studying earthquake waves (Seismology) ...
Earth`s Many Layers
Earth`s Many Layers

... How Did Layers Form? • Initially, Earth = homogeneous mixture ♣ Rock + metal • Heated by: ♣ Energy of impacts ♣ Radioactive decay ...
Volcanoes and Igneous Activity Earth
Volcanoes and Igneous Activity Earth

... times – millions or billions of years An appreciation for the magnitude of geologic time is important because many processes are very gradual The big difference between geology and other sciences: TIME (Geologically speaking, not much happens in a human lifetime!) Therefore, geologists use millions ...
Earth*s Structure
Earth*s Structure

... Unit D Chapter 1 Lesson 1 Pages D6-D11 ...
HNRS 228 Astrobiology Chap.4 Geology Bennett et al.
HNRS 228 Astrobiology Chap.4 Geology Bennett et al.

... A a gas is transparent to visible light and opaque to infrared radiation. B a gas is transparent to infrared radiation and opaque to ultraviolet radiation. C ozone is transparent to ultraviolet radiation and opaque to infrared radiation. D methane is transparent to infrared radiation and opaque to v ...
Lesson 3.4 Biogeochemical Cycles
Lesson 3.4 Biogeochemical Cycles

... •Most of Earth’s water (97.5%) is salt water. •Only 0.5% of Earth’s water is unfrozen fresh water usable for drinking or irrigation. •Earth’s available fresh water includes surface water and ground water. ...
Chapter 4 Notes
Chapter 4 Notes

... A a gas is transparent to visible light and opaque to infrared radiation. B a gas is transparent to infrared radiation and opaque to ultraviolet radiation. C ozone is transparent to ultraviolet radiation and opaque to infrared radiation. D methane is transparent to infrared radiation and opaque to v ...
HNRS 228 Astrobiology Chap.4 Geology Bennett et al.
HNRS 228 Astrobiology Chap.4 Geology Bennett et al.

... A a gas is transparent to visible light and opaque to infrared radiation. B a gas is transparent to infrared radiation and opaque to ultraviolet radiation. C ozone is transparent to ultraviolet radiation and opaque to infrared radiation. D methane is transparent to infrared radiation and opaque to v ...
Word format
Word format

... D. (1) gneiss; (2) quartz, feldspar, and muscovite E. (1) gneiss; (2) quartz, feldspar, and biotite 3. Removal of gravel from the alluvial fan deposit along the Snake River for road construction created a geologic hazard further upstream because it resulted in: A. increased deposition along the rive ...
Preview Sample 1
Preview Sample 1

... resulting in an idea or hypotheses of how things work and an associated set of predictions that would result if the hypotheses were true. When the predictions are tested, they will either support the hypotheses and lead to its acceptance as a theory or raise more questions resulting in the idea bein ...
Picture Review Name
Picture Review Name

Study Guide
Study Guide

... 1. What are the four layers of Earth? What state of matter is each layer? 2. What happens to the temperature and pressure as you move toward the center of Earth? 3. What types of plates make up the crust? How are they different from one another? 4. What happens in the mantle? 5. Why is the outer cor ...
Plate Tectonics Resource Page - Western Reserve Public Media
Plate Tectonics Resource Page - Western Reserve Public Media

... Sometimes when the plates move, they can either collide or bump into each other or one can slide under the other. These are called convergent boundaries. Sliding under one another is called subduction, and often results in volcanoes. If the crusts collide, mountains can be formed. ...
Chapter 26: Earth`s Interior
Chapter 26: Earth`s Interior

Presentation
Presentation

... 2) The continents broke apart and drifted to their present locations. Wegener’s theory was not taken seriously because no one could believe that things as large as continents could move and because Wegener could not propose a mechanism which could explain such motion. ...
Chapter 6-Study Questions
Chapter 6-Study Questions

... ___7. The rigid layer of Earth, which includes the crust as well as the uppermost mantle, is the _____. a. lithosphere b. hydrosphere c. shadow zone d. asthenosphere e. outer core ___8. Dip-slip faults in which the hanging wall moves down relative to the footwall are called _____ faults. a. strike- ...
Planet Earth - Topic 2 (ANSWERS)
Planet Earth - Topic 2 (ANSWERS)

... *Type II - Sedimentary rock is made of sediments - loose material, such as bits of rock minerals, plants and animals remains. These sediments become closely packed in layers and cemented together. This arrangement of visible layers is called stratification ...
Deforming the Earth`s Crust
Deforming the Earth`s Crust

... major types of faults Identify the most common types of mountains Explain the difference between uplift and subsidence Explain how weathering changes the Earth’s surface ...
Exploring The Inner Earth
Exploring The Inner Earth

... (iron and nickel). ...
The Theory of Plate Tectonics
The Theory of Plate Tectonics

... 3. Transform San Andreas Fault ...
S waves
S waves

... 38. Continenal Drift – hypothesis that states the continents were once joined. 39. Evidence that supports Wegeners hypothesis : Fossils on different continents 40. Lithosphereic plates move how fast/year in cm. 5 cm/yr 41. How does the age of sea floor change as it moves away from ocean ridge? Gets ...
Week 10c_2015
Week 10c_2015

... (Based on the velocity of P-waves in the mantle and the analysis of the few rocks found near the surface, believed to have originated from the mantle, the mantle would be composed of rocks that are rich in dense minerals such as olivine, pyroxene, and garnet.) ...
Plate Tectonics Test Study Guide (A)
Plate Tectonics Test Study Guide (A)

...  Describe the theory of plate tectonics  Describe the three types of plate boundaries, including what happens at each type, and the landforms that can be created at each type. Section 5: Key Terms plate- a section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of cont ...
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Age of the Earth



The age of the Earth is 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). This age is based on evidence from radiometric age dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.Following the development of radiometric age dating in the early 20th century, measurements of lead in uranium-rich minerals showed that some were in excess of a billion years old.The oldest such minerals analyzed to date—small crystals of zircon from the Jack Hills of Western Australia—are at least 4.404 billion years old. Comparing the mass and luminosity of the Sun to those of other stars, it appears that the Solar System cannot be much older than those rocks. Calcium-aluminium-rich inclusions – the oldest known solid constituents within meteorites that are formed within the Solar System – are 4.567 billion years old, giving an age for the solar system and an upper limit for the age of Earth.It is hypothesised that the accretion of Earth began soon after the formation of the calcium-aluminium-rich inclusions and the meteorites. Because the exact amount of time this accretion process took is not yet known, and the predictions from different accretion models range from a few millions up to about 100 million years, the exact age of Earth is difficult to determine. It is also difficult to determine the exact age of the oldest rocks on Earth, exposed at the surface, as they are aggregates of minerals of possibly different ages.
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