Compared to the inner planets, the outer planets are... answer choices . MESSENGER has taken extremely detailed pictures of the planet’s surface. Mercury is covered with craters, like Earth’s moon. Scientists think that there is frequent, planet-wide resurfacing of Venus with volcanism taking place in many locations. The inner planets (Mercury, Venus, Earth, and Mars) are also called the terrestrial planets (Earth-like). The outer planets, meanwhile, often have dozens of satellites and rings composed of particles of ice and rock. Venus is also our nearest neighbor. rotation. Most of the volcanoes are no longer active, but scientists have found evidence that there is some active volcanism (Figure below). This is longer than a year on Venus—it takes Venus only 224 days to orbit the Sun. Earth. The outer planets are made largely of gases, so they are also called _____. The outer planets are also called the Jovian planets or gas giants. The planet’s interior structure is similar to Earth’s with a large iron core and a silicate mantle (Figure below). What are Earth’s most distinctive features? Name the inner planets from the Sun outward. Bowl-shaped depressions called _____ formed on the surfaces of inner planets when the planets collided with other objects in space. Water cannot stay in liquid form on Mars because the atmospheric pressure is too low. Mars’ thin atmosphere has led some astronomers to believe that the surface water that once existed there might have actually taken liquid form, but has since evaporated into space. Sun, terrestrial planets: The inner planets are made of _____ and metallic materials. From left to right, they are Mercury, Venus, Earth, and Mars. denser. Then name them from smallest to largest. Although no humans have ever set foot on Mars, both NASA and the European Space Agency have set goals of sending people to Mars sometime between 2030 and 2040. The locations of these features are mostly related to current or former plate boundaries. Rovers have landed on Mars and sent back enormous amounts of information but much of the rest of what is known about the inner planets is from satellite images. Some of these surface features are amazing for their size! MERCURY ______ 6 . The inner planets are those closest to the _____. The inner planets are also called _____ planets, because they are similar to Earth. The dense atmosphere totally obscures the surface of Venus, even from spacecraft orbiting the planet. moons in our solar system are named for mythological characters from a wide variety of cultures. Because the density of impact craters can be used to determine how old a planet’s surface is, the small number of impact craters means that Venus’ surface is young. terrestrial planets. Mercury rotates slowly on its axis, turning exactly three times for every two times it orbits the Sun. Dense clouds within Venus’ atmosphere are composed of sulphuric acid and other corrosive compounds, with very litter water. Descriptive information about the planetary objects discussed in this book is listed in Table 1.1; it is most useful for comparative purposes. rock: The outer layers of the inner planets are in the ____ state. Biology, 22.06.2019 07:20, Maria3737. Much of the surface is very old and filled with craters, but there are geologically newer areas of the planet as well. For comparison, the Grand Canyon in Arizona is about 800 km (500 mi) long and 1.6 km (1 mi) deep. ... Uranus and Neptune contain some hydrogen and helium but also ices of ____ and ____. The outermost planet is _____. This ice can melt when volcanoes erupt, and water can flow across the surface temporarily. c . The two planets closest to the sun are Mercury and Venus. Clouds on Venus are made mostly of carbon dioxide with a bit of sulfur dioxide — and they also contain corrosive sulfuric acid. Earth also has ice covering its polar regions. Venus rotates in a direction opposite the other planets and opposite to the direction it orbits the Sun. The MESSENGER spacecraft has been studying Mercury in detail since 2005. There are fewer crater impacts on Venus than other planets because all but the largest meteors don’t make it through the thick air without disintegrating. But Olympus Mons is also the largest mountain in the solar system (Figure below). By comparison, the Grand Canyon on Earth is only 446 km (277 mi) long and about 2 km (1.2 mi) deep. It has no moons of its own and is comprised mostly of iron and nickel. Tags: Question 7 . The presence of water on Mars, even though it is now frozen as ice, suggests that it might have been possible for life to exist on Mars in the past. A millennia before the Galactic Civil War, the Inner Rim was referred to as the Unknown Reaches. When Venus rises just before the Sun rises, the bright object is called the morning star. Uranus and Neptune are the outer ice giants. Like the other terrestrial planets, Earth has a rocky surface with mountains and canyons, and a heavy metal core. The oceans and the atmosphere help keep Earth’s surface temperatures fairly steady. Most of the surface has large areas of volcanoes surrounded by plains of lava. Mercury is the smallest planet and is the closest to the Sun. g. inner planet . Find out more about Venus at the following link: http://www.nasa.gov/worldbook/venus_worldbook.html. There is also the red planet, called Mars, where ast… Between its eight planets, 176 moons, 5 dwarf planets (possibly hundreds more), 659,212 known asteroids, and 3,296 known comets, it has wonders to sate the most demanding of curiosities. Figure below shows a diagram of Mercury’s interior. The only planet that has a large moon is _____ Iron liquid core. The inner planets are also very much smaller. Generally, inner planets are smaller and denser than their counterparts, and have few to no moons or rings circling them. Mars is a quite different from Earth and yet more similar than any other planet. In fact, the extent of Valles Marineris is as long as the United States and it spans about 20 percent (1/5) of the entire distance around Mars. When it sets just after the Sun sets, it is the evening star. The inner planets are also much more closely spaced than their outer Solar System counterparts. The reddish-orange color is close to what scientists think the color of sunlight would look like on the surface of Venus. Earth’s moon is the only large moon orbiting a terrestrial planet in the solar system. They are mostly made up of silicate rock and metals and have solid surfaces. Why is this important? What are the two causes of density in deep current waters? The relative sizes of the major planetary bodies in the solar system are shown in Figure 1.3. With its thick, corrosive atmosphere, the surface temperature is extremely high. Mercury, the closest planet to the sun, circles the sun every a . Post was not sent - check your email addresses! Venus’ clouds are not made of water vapor like Earth’s clouds. Despite its very short years, Mercury has very long days. Because carbon dioxide is greenhouse gas, the atmosphere traps heat from the Sun and creates a powerful greenhouse effect. We know more about Earth than about any other planet. Earth is the only planet known to have plate tectonics. Identify two places where you might be able to get water on the planet. Venus has mountainous areas, as well as volcanoes surrounded by plains of lava. Like the inner planets, the outer planets have similar characteristics to one another. We know that Earth has what living things need. 3. Living things, as we know them, need sunlight, water, and certain gases. Mercury is one of the densest planets. 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