Science Homework Answers & Questions Page 919

• Earth’s crust is made up of mostly which two elements?

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• What does the surface of Venus look like?

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• What is a gyre? Where would you find one?

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• How far is Saturn from Earth?

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• According to Kepler's First Law, planets move in elliptical orbits. Why is that considered accelerated motion? According to Newton, what is the force causing that acceleration?

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• Why is cosmology important?

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• How did the process of astronomical unit develop?

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• How do earth scientists use maps?

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• What is chemosynthesis?

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• What drives surface currents?

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• How do sedimentary rocks form?

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• How can altitudes be used to calculate the circumference of the earth?

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• What is the distance from earth to the sun in scientific notation?

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• How far is Uranus from the sun?

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• How long would it take a space shuttle to reach the sun?

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• What is ice thrusting and how does it result in glacial erosion?

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• What does the Chandrasekhar limit tells us?

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• What are the different types of fossils?

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• What is the largest planet in the universe and how does it compare in size to earth?

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• At what point does the ecliptic cut the celestial equator?

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• Is there a direct relationship between the eccentricity of a planet's orbit and its distance from the sun?

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• What is the world's largest desert?

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• What causes low tides and high tides to occur?

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• The diameter of the earth is greatest at the what?

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• What is the diameter of the earth in km?

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• What is the relationship between weathering and erosion?

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• What is pluto's distance from the earth in miles?

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• How do you calculate the surface area of the earth?

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• Why do contour lines never cross on a topographic map?

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• What is the difference between a star, planet, and moon?

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• Is a rift valley a convergent plate boundary?

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• What are the differences between local and global winds?

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• If you could shrink the universe down to the size of earth, how big would earth be?

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• What are hydrocarbons?

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• What is a geyser and how are they produced?

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• How is lava produced at a mid-ocean ridge?

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• How fast was comet Shoemaker-Levy 9 going when it hit Jupiter?

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• How many light minutes is the Earth away from the Sun?

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• What must happen for a protostar to become a star?

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• Approximately how long ago did the first dinosaurs appear on Earth?

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• What is the order from largest to smallest: galaxy, universe, star, asteroids, planets, moons, solar system?

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• What is tangential velocity?

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• A lightyear is the distance light can travel in one year. If the sun is 150,000,000 km away, how many light years is the sun from the earth? Assume that light travels at a speed of ##3.00 * 10^10 cm/s##. Thanks for any help!?

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• What is the scientific name of our solar system?

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• When will the world end?

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• What is a very bright star that is made of an enormous cloud of gas?

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• Why is old oceanic crust more dense than new oceanic crust?

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• What are 5 properties of minerals?

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• What causes tides to occur?

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• What is the difference between extrusive and intrusive volcanic landforms?

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