Guided Learning Explorations in Physical Geology: Planetary Geology Questions And Answers Pass Guaranteed

When thinking about the cosmos, it is easy to be overwhelmed by its immense scale. Let's start by putting everything into context according to scale. Order the following terms, starting with the largest and progressing to the smallest. - correct answers diameter of universe diameter of milky way one light year diameter of solar system one astronomical unit diameter of moons orbit It is important to remember that everything in the night sky appeared at different times. Stars are born and die, galaxies are created and obliterated, planets form and are destroyed. With this in mind, match each of the following celestial objects to its age of formation. - correct answers 13.7 billion years the Universe 13.51 billion years the Milky Way Galaxy 4.543 billion years Earth 4.53 billion years the Earth's Moon an icy body with a highly elliptical orbit that will take it close enough to the sun that it will start to outgas comet an object that orbits a star, is roughly spherical, and has "cleared its neighborhood of other objects" planet a sizable body locked in orbit around a planet moon a rocky body that is too small to be spherical and orbits the sun asteroid - correct answers an icy body with a highly elliptical orbit that will take it close enough to the sun that it will start to outgas comet an object that orbits a star, is roughly spherical, and has "cleared its neighborhood of other objects" planet a sizable body locked in orbit around a planet moon a rocky body that is too small to be spherical and orbits the sun asteroid solid, liquid, gas - correct answers solid; does not change shape to match a container has the highest density liquid; conforms to the shape of a container without changing density gas; will take up the greatest volume for a defined mass In our Solar System, many celestial bodies are primarily solid (terrestrial). Others are primarily gas. Organize the terms below based on the dominant phase. - correct answers gas, the sun, Saturn, neptune terrestial, mercury, the moon, mars, Pluto Order of planets - correct answers Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune During the formation of the Solar System, the Earth started as a molten planetesimal. As the Earth began to cool, dense elements like iron and nickel settled to the core of the Earth, while lighter elements and molecules rose toward the surface. What is the name for this process? - correct answers differentiation The materials that make up the Earth change as you move from the crust, down through the mantle, and ultimately into the Earth's core. Select the image of the rock below that you would most likely find on surface The materials that make up the Earth change as you move from the crust, down through the mantle, and ultimately into the Earth's core. Select the image of the rock below that you would most likely find in the core. - correct answers granite, 2.7g/cm3 iron alloy, 7.5g/cm3 Finally, the rocky surface of the Earth is separated from space by a thin gas covering known as the atmosphere. Our atmosphere is separated into four distinct layers based on changes in temperature trends. Use the terms below to label the four primary layers of our atmosphere. (put in order from top to bottom) - correct answers 1) thermosphere2) mesosphere3) stratosphere4) troposphere This image of the Moon shows a dark mare and the light-colored highlands. Based on the number of craters present on each landscape, click on the older surface. - correct answers one with more craters The geological principle of cross-cutting relationships states that younger events or features will cross-cut older ones. This principle allows us to decipher the order of geologic events, which will contribute to our understanding of the geological history of a specific area or outcrop that we're trying to decipher. Let's look again at the surface of the Moon to see how this works. This video is from near the landing site of Apollo 15. It shows where a crater and a rille (collapsed lava tube) have interacted. - correct answers Below is a still image of a crater and rille from the video. Can you determine which is younger? crater Finally, let's look at a more complex assortment of craters. Here we can see four craters clustered together. Based on the principle of cross-cutting relationships, you should be able to place the craters in order from oldest to youngest. - correct answers