GEOLOGIC TIME SCALE
... Major group of organisms becomes extinct new time interval (66 million years age = end of the Mesozoic Era or beginning of the Cenozoic Era) Dinosuars became extinct (no more fossils) ...
... Major group of organisms becomes extinct new time interval (66 million years age = end of the Mesozoic Era or beginning of the Cenozoic Era) Dinosuars became extinct (no more fossils) ...
Chapter 2: Earth as a System STUDY NOTES Chapter 2 Section 1
... 5.The force of attraction that exists among all matter in the universe is called _________. ...
... 5.The force of attraction that exists among all matter in the universe is called _________. ...
Chemical elements
... after build up of O2 in atmosphere O3 (ozone) formed ozone layer essential to absorb harmful UV radiation so that life could move on to land Origin of life on earth commonality of all living things: organic compounds all organic material contains C and H proteins formed from set of amino acids (incl ...
... after build up of O2 in atmosphere O3 (ozone) formed ozone layer essential to absorb harmful UV radiation so that life could move on to land Origin of life on earth commonality of all living things: organic compounds all organic material contains C and H proteins formed from set of amino acids (incl ...
Inferred Properties about Earth`s Interior
... Answer the following: 1. Why did we color each section from the pie part down to the xaxis? 2. Which section is the thickest? State the range of depth in km. 3. What is the interface between the crust and the mantle called? 4. Which part of the earth is the least dense? 5. What is the pressure i ...
... Answer the following: 1. Why did we color each section from the pie part down to the xaxis? 2. Which section is the thickest? State the range of depth in km. 3. What is the interface between the crust and the mantle called? 4. Which part of the earth is the least dense? 5. What is the pressure i ...
Impact on Climate - Effingham County Schools
... Scientists theorize that global warming would cause higher ocean levels and global freezing would cause lower ocean levels. ...
... Scientists theorize that global warming would cause higher ocean levels and global freezing would cause lower ocean levels. ...
Plate Techtonics
... 2) subduction: diving under another plate 3) collision: crashing into one another ...
... 2) subduction: diving under another plate 3) collision: crashing into one another ...
atmosphere - Sackville School
... The gases that make up the atmosphere are present in the following amounts: about 21% is oxygen ...
... The gases that make up the atmosphere are present in the following amounts: about 21% is oxygen ...
Continents Adrift: An Introduction to Continental Drift and Plate
... 3. Which of these pieces of evidence did Wegener use to support his theory of continental drift? a. Subduction zones b. Divergent boundaries c. Seafloor spreading d. Fossils from different continents 4. Seafloor spreading explains why ...
... 3. Which of these pieces of evidence did Wegener use to support his theory of continental drift? a. Subduction zones b. Divergent boundaries c. Seafloor spreading d. Fossils from different continents 4. Seafloor spreading explains why ...
I. Atmosphere - Bethpage Union Free School District
... soot, sea salt – Blocks some incoming radiation from the sun, decreasing the temperature of Earth – Needed for condensation of water into rain or snow (vapor must condense into a liquid onto a solid particle like dust) ...
... soot, sea salt – Blocks some incoming radiation from the sun, decreasing the temperature of Earth – Needed for condensation of water into rain or snow (vapor must condense into a liquid onto a solid particle like dust) ...
Unit 1 The Earth, Water, and Landforms
... underside of the crust ___________- thin layer of rock at the earth’s surface On and above earth_______________- surrounding the earth-layer of gases, oxygen, protects from radiation, space debris _______________- solid rock- some below water and forms floor of ocean _______________- 7 _____________ ...
... underside of the crust ___________- thin layer of rock at the earth’s surface On and above earth_______________- surrounding the earth-layer of gases, oxygen, protects from radiation, space debris _______________- solid rock- some below water and forms floor of ocean _______________- 7 _____________ ...
Shaping Earths surface Ch 4 lesson 2
... The amount of energy released during an earthquake. Ranges from less than 1 to 9.9 The higher the number the stronger the earthquake. ...
... The amount of energy released during an earthquake. Ranges from less than 1 to 9.9 The higher the number the stronger the earthquake. ...
Earth`s Atmosphere
... located close to the earth's surface where it is most dense. 3. The air of our planet is 79%nitrogen and just under 21% oxygen; the small amount remaining is composed of carbon dioxide and other gasses. ...
... located close to the earth's surface where it is most dense. 3. The air of our planet is 79%nitrogen and just under 21% oxygen; the small amount remaining is composed of carbon dioxide and other gasses. ...
Earth`s Atmosphere
... located close to the earth's surface where it is most dense. 3. The air of our planet is 79%nitrogen and just under 21% oxygen; the small amount remaining is composed of carbon dioxide and other gasses. ...
... located close to the earth's surface where it is most dense. 3. The air of our planet is 79%nitrogen and just under 21% oxygen; the small amount remaining is composed of carbon dioxide and other gasses. ...
PTYS/ASTR 206 – Section 2 - Lunar and Planetary Laboratory
... D) subduction. #3. What is the most dominate form of geological activity on planetary bodies in the solar system? A) plate tectonics B) volcanism C) impact cratering D) erosion #4. The large amount of free oxygen in Earth’s present atmosphere is primarily a result of A) splitting of CO2 into carbon ...
... D) subduction. #3. What is the most dominate form of geological activity on planetary bodies in the solar system? A) plate tectonics B) volcanism C) impact cratering D) erosion #4. The large amount of free oxygen in Earth’s present atmosphere is primarily a result of A) splitting of CO2 into carbon ...
An active chain of volcanoes at p boundaries is called the Ring of F
... core is the only true liquid layer. The interior of the Earth is hot. Convection currents- heat flow and movement of material within the Earth cause sections of Earth’s crust to move. This may result in earthquakes, volcanic eruption, and the creation of mountains and ocean basins. Convection cells- ...
... core is the only true liquid layer. The interior of the Earth is hot. Convection currents- heat flow and movement of material within the Earth cause sections of Earth’s crust to move. This may result in earthquakes, volcanic eruption, and the creation of mountains and ocean basins. Convection cells- ...
200 300 400 500 100 200 300 400 500 100 200 300 400 500 100
... canyons in the continental slope. ...
... canyons in the continental slope. ...
Earth Structures
... Earthquake: the violent shaking of Earth’s crust as built up energy is released. Epicenter: point on Earth’s surface directly above the focus of an earthquake Fault: crack in Earth’s crust along which movement takes place ...
... Earthquake: the violent shaking of Earth’s crust as built up energy is released. Epicenter: point on Earth’s surface directly above the focus of an earthquake Fault: crack in Earth’s crust along which movement takes place ...
Elaborating on a Preexisting Concept
... 28. New rock is added to plates only from the top when volcanoes spew out molten rock that solidifies into new rock on the surface of the plate. ...
... 28. New rock is added to plates only from the top when volcanoes spew out molten rock that solidifies into new rock on the surface of the plate. ...
Earth`s Systems Study Guide 1. Name the four parts of Earth`s
... 28.____________________ is a measure of the amount of dissolved salts in a given amount of liquid. 29 Name the three temperature zones of the ocean. ...
... 28.____________________ is a measure of the amount of dissolved salts in a given amount of liquid. 29 Name the three temperature zones of the ocean. ...
1. What analogy (comparison between two things) does
... 5. Scientists predict that in another 250 million years, the continents will be located in different positions. How is this possible? A. The tectonic plates on Earth are continually moving at a slow rate. B. The gravity on Earth causes the continents to move around. C. Scientist think that the conti ...
... 5. Scientists predict that in another 250 million years, the continents will be located in different positions. How is this possible? A. The tectonic plates on Earth are continually moving at a slow rate. B. The gravity on Earth causes the continents to move around. C. Scientist think that the conti ...
National Geographic – Colliding Continents Video
... 18. The world’s last supercontinent is known as _____________________. 19. How many years ago did the supercontinent Pangaea begin breaking up? ___________ years ago 20. During the break-up of Pangaea, South America split off from ______________, North America split off from ________________, and Au ...
... 18. The world’s last supercontinent is known as _____________________. 19. How many years ago did the supercontinent Pangaea begin breaking up? ___________ years ago 20. During the break-up of Pangaea, South America split off from ______________, North America split off from ________________, and Au ...
Spheres of the Earth
... • 71% of the Earth is covered by water and only 29% is land. • Earth called “Blue Planet” • Water to exist in all three states: solid (ice), liquid (water), and gas (water vapor). • Water is the universal solvent and the basis of all life on our Planet. ...
... • 71% of the Earth is covered by water and only 29% is land. • Earth called “Blue Planet” • Water to exist in all three states: solid (ice), liquid (water), and gas (water vapor). • Water is the universal solvent and the basis of all life on our Planet. ...
History of Earth
The history of Earth concerns the development of the planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to the understanding of the main events of the Earth's past. The age of Earth is approximately one-third of the age of the universe. An immense amount of biological and geological change has occurred in that time span.Earth formed around 4.54 billion years ago by accretion from the solar nebula. Volcanic outgassing probably created the primordial atmosphere, but it contained almost no oxygen and would have been toxic to humans and most modern life. Much of the Earth was molten because of frequent collisions with other bodies which led to extreme volcanism. One very large collision is thought to have been responsible for tilting the Earth at an angle and forming the Moon. Over time, the planet cooled and formed a solid crust, allowing liquid water to exist on the surface.The first life forms appeared between 3.8 and 3.5 billion years ago. The earliest evidences for life on Earth are graphite found to be biogenic in 3.7-billion-year-old metasedimentary rocks discovered in Western Greenland and microbial mat fossils found in 3.48-billion-year-old sandstone discovered in Western Australia. Photosynthetic life appeared around 2 billion years ago, enriching the atmosphere with oxygen. Life remained mostly small and microscopic until about 580 million years ago, when complex multicellular life arose. During the Cambrian period it experienced a rapid diversification into most major phyla. More than 99 percent of all species, amounting to over five billion species, that ever lived on Earth are estimated to be extinct. Estimates on the number of Earth's current species range from 10 million to 14 million, of which about 1.2 million have been documented and over 86 percent have not yet been described.Geological change has been constantly occurring on Earth since the time of its formation and biological change since the first appearance of life. Species continuously evolve, taking on new forms, splitting into daughter species, or going extinct in response to an ever-changing planet. The process of plate tectonics has played a major role in the shaping of Earth's oceans and continents, as well as the life they harbor. The biosphere, in turn, has had a significant effect on the atmosphere and other abiotic conditions on the planet, such as the formation of the ozone layer, the proliferation of oxygen, and the creation of soil.