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Stack #4635466

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The distance between the Earth and Sun is 1 Astronomical Unit (AU) or about 150 million kilometers
Composition describes what an object is made up of
The atmosphere is made up of the layers of gasses that surround a planet.
The sun, our closest star, is at the center of our solar system
Planets, comets, asteroids, dwarf planets, and moons are all in our solar system.
Planets, comets, asteroids, dwarf planets orbit the sun
Planets can be categorized as inner or outer planets according to density, diameter and surface features.
Inner planets are small, rocky and closer to the sun and are also known as terrestrial planets
Inner planets have short periods of revolution
Mercury, Venus, Earth, and Mars are Inner planets
Earth is the only place in our universe with life as we know it.
Mars used to have water on its surface
Venus and Earth are similar in size and makeup but different in temperature and atmosphere
Inner planets generally have rounded shapes
Earth is the largest Inner Planet and Mercury is the smallest
Outer planets are mostly large, made of gas, have rings, and are farther from the sun and are also known as gas giants
Jupiter, Saturn, Uranus, and Neptune are Outer Planets
Jupiter is the largest of the Outer Planets
All outer planets have rings
Outer planets generally have rounded shapes
Outer planets have very thick atmospheres
Outer Planets have many moons and long periods of revolution
Most objects in the Solar System orbit the Sun and have distinctive physical characteristics and orderly motion.
Dwarf Planets usually have a smaller mass and have not cleared their orbit of other objects
Dwarf planets are made of rock, ice, and gas
Dwarf planets have a round or oval shape
Pluto is not a planet because it doesn't clear its orbit and it is not massive enough to round its shape
Dwarf planets are the least massive type of planet in our solar system
Most objects in the Solar System orbit the Sun and have distinctive physical characteristics and orderly motion.
Moons orbit planets or dwarf planets
Outer planets usually have many moons,
Inner planets usually have few or no moons
Moons have a rounded or irregular/oblong shape
Moons are generally made of rock and ice
Most objects in the Solar System orbit the Sun and have distinctive physical characteristics and orderly motion.
Comets are made up of rock, ice, dust, and frozen gas
The cloud of dust and ice for a comet is called a coma
Comets have long narrow orbit paths
Comets orbit stars
Comets are made up of a head and tail
Most objects in the Solar System orbit the Sun and have distinctive physical characteristics and orderly motion.
Asteroids are very small rocky objects
Most asteroids are found in the Asteroid Belt between Mars and Jupiter or in the Kuiper Belt past Neptune
Most objects in the Solar System orbit the Sun and have distinctive physical characteristics and orderly motion.
Galaxies are massive collections of gas, dust and stars held together by gravity
Galaxies are shaped like Spiral, Elliptical, or Irregular objects
Our Solar System is one of many orbiting the center of the Milky Way galaxy
Our knowledge of our universe has improved because of engineering advancements in space-based telescopes and space probes.
Telescopes allow astronomers to observe stars better than with eyes alone
Telescopes in space allow astronomers to detect more objects because the Earth’s atmosphere does not absorb the energy
Space based telescopes can detect objects much further from Earth than land based telescopes
Space probes travel to other objects to allow scientists to learn about their surface and atmosphere
Landers allow scientist to explore the surface of other planets by driving around them
Created by: im him 67
 

 



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