Science Vocabulary: Unit 2 System- is made up of a star and the planets and other space objects that revolve around it. Planet- is a large round body that revolves around a star. Dwarf Planet- nearly round bodies whose orbits cross the orbits of other bodies. Asteroid- are rock and iron objects that the sun. (The Asteroid Belt is located in a wide region between Mars and Jupiter.) Comets- Chunk of frozen gases, rock, ice and dust. Star- are huge balls of hot, glowing gases that produce their own heat and light. Universe- is everything that exists. Galaxy- is a group of billions of stars, the objects that orbit the stars, gas, and dust. Inner Planets- any of the four planets closest to the Sun (Mercury, Venus, Earth, and Mars). Outer Planets- any of the four planets farthest from the Sun (Jupiter, Saturn, Uranus, and Neptune). Orbit- the path of one body around another body, such as the path of Earth around the Sun. Gravity-the force of attraction between all objects in the universe. This is what causes planets to orbit around the Sun, the moon to orbit Earth, and objects to fall to the ground. Astronomy- Is the study of objects in space and their characteristics. Planet- a planet having a rocky surface like Earth’s. This is also called planet”. “terrestrial Gas Giant- A large planet composed mainly of gas.
Science Vocabulary: Unit 2 System- is made up of a star and the planets and other space objects that revolve around it. Planet- is a large round body that revolves around a star. Dwarf Planet- nearly round bodies whose orbits cross the orbits of other bodies. Asteroid- are rock and iron objects that the sun. (The Asteroid Belt is located in a wide region between Mars and Jupiter.) Comets- Chunk of frozen gases, rock, ice and dust. Star- are huge balls of hot, glowing gases that produce their own heat and light. Universe- is everything that exists. Galaxy- is a group of billions of stars, the objects that orbit the stars, gas, and dust. Inner Planets- any of the four planets closest to the Sun (Mercury, Venus, Earth, and Mars). Outer Planets- any of the four planets farthest from the Sun (Jupiter, Saturn, Uranus, and Neptune). Orbit- the path of one body around another body, such as the path of Earth around the Sun. Gravity-the force of attraction between all objects in the universe. This is what causes planets to orbit around the Sun, the moon to orbit Earth, and objects to fall to the ground. Astronomy- Is the study of objects in space and their characteristics. Planet- a planet having a rocky surface like Earth’s. This is also called “terrestrial planet”. Gas Giant- A large planet composed mainly of gas.
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