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| spinning of Earth on its imaginary axis, which takes about 24 hours to complete and causes day and night to occur. |
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| Earth’s yearlong elliptical orbit around the Sun. |
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| a round, three-dimensional object whose surface is the same distance from its center at all points; Earth is a sphere that bulges somewhat at the equator and is slightly flattened at the poles. |
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| elongated, closed curve that describes Earth’s yearlong orbit around the Sun. |
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| imaginary vertical line that cuts through the center of Earth and around which Earth spins. |
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| When the earth is leaning over |
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| describes phases that occur after a full moon, as the visible lighted side of the Moon grows smaller. |
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| describes phases following a new moon, as more of the Moon’s lighted side becomes visible. |
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| The outer part of a sunspot |
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| The inner part of a sunspot |
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| Having the observable illuminated part greater than a semicircle and less than a circle. |
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| The curved sickle shape of the waxing or waning moon |
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| What is the Summer Solstice and When |
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| The greatest tilt the Northern or southern hemisphere has towards the sun: June 21 |
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| What is the Winter Solstice and when? |
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| The greatest tilt the Northern or southern hemisphere has away the sun: December 22 |
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| What are Equinoxes, When and Why? |
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| The time or date (twice each year) at which the sun crosses the celestial equator, when day and night are of equal lengthSeptember 22-23 & March 21-22 |
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| How do Solar and Lunar Eclipses occur? |
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| Solar: When the moom moves in between the Earht and Sun. Lunar: Then the earths shadow is on the moon. |
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| new, waxing cresect, first quarter, waxing gibous, full, waning gibbous, 3rd quarter, waning crescent |
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| Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune |
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| The theory that the earht is the center of the solar system |
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| The theory that the sun is the center of the solar system. |
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| The proportion of the incident light or radiation reflected by a surface |
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| The shape of our orbit around the Sun |
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| system of nine planets, including Earth, and other objects that revolve around the Sun. |
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| in an earthquake, the point below Earth’s surface where energy is released in the |
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| space object made of dust and rock particles mixed with frozen water, methane, and ammonia that forms a bright coma as it approaches the Sun. |
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| a piece of rock or metal made up of material similar to that which formed the planets; mostly found in the asteroid belt between the orbits of Mars and Jupiter. |
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| a meteoroid that burns up in Earth’s atmosphere |
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| a meteoroid that strikes the surface of a moon or planet. |
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| unit representing the distance light travels in one year—about 9.5 trillion km—used to record distances between stars and galaxies. |
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| The mesurement of the light |
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| measure of the amount of light a star actually gives off. |
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| measure of the amount of light from a star that is received on Earth. |
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| How does the Sun produce Energy and where? |
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| The sun turns hydrogen into helium iside the convection zone |
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| late stage in the life cycle of a comparatively low-mass main sequence star; formed when its core depletes its helium and its outer layers escape into space, leaving behind a hot, dense core. |
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| states that about 13.7 billion years ago, the universe began with a huge, fiery explosion. |
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| group of stars that forms a pattern in the sky that looks like a familiar object (Libra), animal (Pegasus), or character (Orion). |
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| Where two (suns) or planets orbit around each other |
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| late stage in the life cycle of a massive star in which the core heats up, heavy elements form by fusion, and the star expands; can eventually explode to form a supernova. |
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| final stage in the evolution of a very massive star, where the core’s mass collapses to a point that it’s gravity is so strong that not even light can escape. |
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| collapsed core of a supernova that can shrink to about 20 km in diameter and contains only neutrons in the dense core. |
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| large cloud of gas and dust that contracts under gravitational force and breaks apart into smaller pieces, each of which might collapse to form a star. |
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| Different Shapes of Galexies? |
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| Spiral, Eliptical, irregular |
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| rigid layer of Earth about 100 km thick, made of the crust and a part of the upper mantle. |
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| plasticlike layer of Earth on which the lithospheric plates float and move around. |
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| Rocks, Fossils, Plants, Animals, Fit like puzzles |
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