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30 Cards in this Set
- Front
- Back
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a very large mass of hot, glowing gases
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star
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a large body of matter that moves around a star such as the sun
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planet
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the sun, the planets and thier moons, and other objects that move around the sun
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solar system
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a large hole in the ground that is shaped like a bowl
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crater
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an imaginary straight line through the center of Earth around which Earth rotates
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axis
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to spin on an axis
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rotate
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the path an object follows as it moves around another object
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orbit
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movement of an object in an orbit around another object
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revolution
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an object that revolves around another object
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satellite
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the rise and fall fo the ocean mainly due to the moon's gravity
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tide
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the shape of the lighted part of the moon
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phase
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an instrument for making distant objects appear nearer and larger
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telescope
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a person who travels in space
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astronaut
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What is a star?
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a very large mass of hot, glowing gases
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What is a planet?
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a large body of matter that moves around a star such as the sun
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What is a solar sytem?
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the sun,the planets and their moons, and other objects that move around the sun
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What is a crater?
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a large hole in the gorund that is shaped like a bowl
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What is an axis?
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an imaginary straight line through the center of Earth around whcih Earth rotates
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What does rotate mean?
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to spin on an axis
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What is an orbit?
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the path an object follows as it moves around another object
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What is a revolution?
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the movement of an object in an orbit around another object
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What is a satellite?
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an object that revolves around another object
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What is the tide?
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the rise and fall of the ocean mainly due to the moon's gravity
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What is a moon phase?
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the shape of the lighted part of the moon
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What is a telescope?
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an instrument for making distant objects appear nearer and larger
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What is an astronaut?
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a person who travels in space
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What makes day and night?
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Earth's rotation on its axis causes day and night.
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What is Earth's most important source of energy?
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The sun is Earth's most important energy source.
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Name the planets in our solar system.
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The planets in our solar system are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
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What parts of Earth are warmer than other places?
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The place where sunlight hits Earth straight on are warmer than places where it hits at an angle.
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