earth spins around the sun on its axis. this is called the rotation of earth. it tilts and the...
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EARTH
• Spins around the sun on its AXIS. This is called the ROTATION of earth.
• It tilts and the revolution causes SEASONS!
• It is an INNER planet.
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MERCURY
• Second smallest planet.• Closest planet to the sun
• Its surface is scarred by craters.• Is an INNER planet.
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VENUS
• Its surface is surrounded by thick clouds.• Second closest planet to the sun
• It is an INNER planet.
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MARS
• Iron oxide, known as rust, is found in its rocks.
• Fourth planet from the sun• Is an INNER planet.
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JUPITER
• Fifth planet from the sun• Largest planet
• Has the shortest day• Is an OUTER planet.
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SATURN
• Sixth planet from the sun.• Orbited by at least 30 moons.• OUTER planet.
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URANUS
• Seventh planet from the sun• Is an OUTER planet
• Has rings
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NEPTUNE
• Eighth planet from the sun.• Is an OUTER planet. • Known as a gas planet.
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PLUTO
• Now known as a “Dwarf Planet”• Smaller than Earth’s moon
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Earth’s Moon
• Takes 28 days to orbit the Earth.• Wane:• Wax:• Eclipse:
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Asteroids
• Pieces of rock.• Made of minerals similar to those that
formed rocky planets and moons
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SUN
• The distance from Earth to the sun is measured in ASTRONOMICAL UNITS.
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STARS
• Scientists believe they began as huge clouds of gas and dust.
• A group of stars that form a pattern is a CONSTELLATION.
• Scientist infer there are 100 billion stars in the universe.
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COMETS
• Large body of ice and rock• They appear to glow
• Travel in an elliptical orbit.
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GALAXIES
• Made of: Stars, gas and dust.• Shapes are: Spiral, Elliptical and Irregular• We live in the Milky Way Galaxy. It is Spiral.• You can’t see the entire Milky Way from
Earth because Earth is INSIDE the Milky Way.