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How The Earth Works
How The Earth Works

... Deposition of Niagara Dolomite • 100 m/ 1 m.y.? = 1 cm/100 yr. ...
Earth`s Interior
Earth`s Interior

... 1. Describe the changes of temperature, pressure and density at increasing depths below the earth’s surface . 2. Explain how the earth’s structure has been determined from seismic evidence. 3. Compare and contrast the properties of P waves and S waves. 4. Describe the location and composition of the ...
No Slide Title
No Slide Title

The Deep Ocean Exploration Institute T Investigating Earth’s dynamic processes
The Deep Ocean Exploration Institute T Investigating Earth’s dynamic processes

... waterless surfaces of Venus, Mars, and the moon in detail, we have mapped only 5 percent of the entire seafloor at the same resolution. Just 50 years ago, we were as ignorant about our home planet as we were about our solar system nearly 500 years ago—before the astronomer Copernicus told us that th ...
Quiz Maker - Geneva 304
Quiz Maker - Geneva 304

... 7. Metric prefixes are based on powers of _____. List the metric prefixes in order from largest to smallest. Write a sentence using the first letter of every metric prefix in order from largest to smallest. 8. Compare and contrast mass, weight, and gravity. Give the metric units associated with each ...
processes that shape the earth
processes that shape the earth

...  They can create islands in the ocean and form mountain ranges on land.  A mountain is formed when part of the land rises above its surroundings. Magma from deep inside Earth may rise through cracks made when the earth rises. This may form volcanoes. Volcanoes can build the mountains even higher. ...
Figure 3
Figure 3

Comparing Earth and Moon – Reading Notes
Comparing Earth and Moon – Reading Notes

... When the moon formed, it did not have enough gravity to hold onto an atmosphere. That means there is no air to breathe on the moon. There is also no weather. When Earth formed, an atmosphere developed around it. Earth’s atmosphere is made up of gases. We get the oxygen we need to breath from the atm ...
Layers of the Earth
Layers of the Earth

... 3) the mantle: dense and mostly ______________ _____________ 4) the crust: _____________ ______________________ material ...
Earth`s Internal Processes
Earth`s Internal Processes

Plate Tectonics Bingo - Western Reserve Public Media
Plate Tectonics Bingo - Western Reserve Public Media

... relative to one another an average of a few inches a year or about as fast as fingernails grow. Plate Tectonics: The term for the field of study of large scale motions of the earth’s lithosphere. Subduction: When one plate is forced beneath another into the mantle and eventually undergoes partial me ...
chart_set_5
chart_set_5

... A feature of oceans (but solid material has small tides too). Two high and two low tides per day. Tides are due to Moon's gravitational pull being stronger on side of Earth closest to it (Sun causes smaller tides). Earth-Moon gravity keeps them orbiting each other. But side of Earth closest to Moon ...
File
File

... An example of the cause of an Earthquake • For example as two plates move towards each other, one can be pushed down under the other one into the mantle. • If this plate gets stuck it causes a lot of pressure on surrounding rocks. • When this pressure is released it produces shock waves. These are ...
Determining Krypton Concentration is Xenon
Determining Krypton Concentration is Xenon

Earth`s Interior
Earth`s Interior

1.1 - Newtonian Gravitation and Orbits - K
1.1 - Newtonian Gravitation and Orbits - K

Plate Tectonics Crossword - www .alexandria .k12 .mn .us
Plate Tectonics Crossword - www .alexandria .k12 .mn .us

Take Home 12 Complete the following on your own paper. Do not
Take Home 12 Complete the following on your own paper. Do not

... interior of the earth. (2) The seismic waves change direction and speed as they encounter different materials. (3) With this information, scientists have been able to subdivide the Earth into layers. (4) The composition of the Earth is also supported by data from the study of meteorites. (5) Meteori ...
Discussion Class 4
Discussion Class 4

... that the field points in a particular direction, when the charge density is uniform? 2. All of electrostatics basically follows from the inverse-square law, together with the principle of superposition. An analogous theory can therefore be constructed for Newton’s law of gravitation. (a) What is the ...
Chapter 02 Earth Structure and Plate Tectonics
Chapter 02 Earth Structure and Plate Tectonics

... 37. The density of Earth materials _______ as the core is approached. 38. The Moho is located between the 39. Which of the following help us believe that Earth's mass is distributed spherically and uniformly around Earth's center? 40. Which of Earth's layers contains the greatest volume of material? ...
Gravitational Force Name: Date: 1. What is the
Gravitational Force Name: Date: 1. What is the

Earth`s Structure
Earth`s Structure

...  Crust = foamy, scum that floated to top Oceanic crust 3g/cc Continental crust 2.7g/cc ...
Lessons 4 and 5 Vocabulary
Lessons 4 and 5 Vocabulary

... Crust – The earth’s outer layer; the coolest and least dense layer of the earth. See also core; mantle. ...
The Dynamic Earth - McEachern High School
The Dynamic Earth - McEachern High School

Notes 11 – Earth`s Interior
Notes 11 – Earth`s Interior

... No plate movement No volcanoes No earthquakes No mountain building ...
< 1 ... 154 155 156 157 158 159 160 161 162 ... 212 >

Schiehallion experiment



The Schiehallion experiment was an 18th-century experiment to determine the mean density of the Earth. Funded by a grant from the Royal Society, it was conducted in the summer of 1774 around the Scottish mountain of Schiehallion, Perthshire. The experiment involved measuring the tiny deflection of a pendulum due to the gravitational attraction of a nearby mountain. Schiehallion was considered the ideal location after a search for candidate mountains, thanks to its isolation and almost symmetrical shape. One of the triggers for the experiment were anomalies noted during the survey of the Mason–Dixon Line.The experiment had previously been considered, but rejected, by Isaac Newton as a practical demonstration of his theory of gravitation. However, a team of scientists, notably Nevil Maskelyne, the Astronomer Royal, were convinced that the effect would be detectable and undertook to conduct the experiment. The deflection angle depended on the relative densities and volumes of the Earth and the mountain: if the density and volume of Schiehallion could be ascertained, then so could the density of the Earth. Once this was known, then this would in turn yield approximate values for those of the other planets, their moons, and the Sun, previously known only in terms of their relative ratios. As an additional benefit, the concept of contour lines, devised to simplify the process of surveying the mountain, later became a standard technique in cartography.
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