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5th Grade Space Vocabulary Crossword

Across
a streak of light in the sky caused by a meteoroid crashing through Earth's atmosphere
rocky or metallic objects that orbit the sun ranging in size from dust grains to small asteroids
a miniature representation of something
the force that attracts objects toward the center of the earth, or toward any other object having mass. Greater mass = greater gravitational force.
the points on the Earth's surface defining the axis of rotation of the Earth
gas planets that are furthest from the sun and beyond the asteroid belt-Jupiter, Saturn,Uranus, Neptune
an icy, small Solar System body that warms and begins to release gasses when passing close to the Sun
the period of time when a portion of Earth is facing the Sun
an oval-shaped path
the period of time when a portion of Earth is facing away from the Sun
a region of icy objects beyond the orbit of Neptune. It is home to Pluto, most of the known dwarf planets, and comets.
a group of stars that forms a particular shape in the sky and has been given a name.
a straight line on which a planet rotates.
the Sun and everything that orbits, or travels around, the Sun. This includes the eight planets and their moons, dwarf planets, asteroids, and comets.
all existing matter and space as a whole; the cosmos.
a half of earth as divided into two halves by the equator
huge, glowing balls of gasses. The closest star to Earth is the Sun.
the action of making one complete turn on an axis or center (On Earth 1 rotation = 24 hours)
Down
the amount of time it takes to revolve around the sun
a repeating path that one object in space takes around another. All orbits are elliptical in shape.
a meteoroid that survives a trip through the atmosphere and hits the ground
an object that orbits the sun, has enough mass to assume a nearly round shape, has not cleared the neighborhood around its orbit, and is not a moon.
the push or pull on an object
large natural objects that orbit, or travel around, stars.
a special quality or trait that makes something different from others.
naturally-formed bodies that orbit planets.
the mixture of gasses surrounding the earth or another planet.
the star at the center of the solar system. It is a hot ball of gasses that gives off great amounts of energy. Life on Earth depends on light and heat from the Sun.
rocky planets that are closest to the sun-Mercury, Venus, Earth, Mars
the action by a celestial body of going round in an orbit; the time taken by a celestial body to make a complete round in its orbit
place between Mars and Jupiter where the majority of known asteroids and one dwarf planet orbit.
rocky, airless remnants left over from the early formation of our solar system about 4.6 billion years ago.