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A meteor is a lump of rock that falls from space towards earth (a piece of asteroid or comet bits)
*You dont really need to know but...
Passing through the atmosphere causes friction and burning, making a streak of light. When it hits the earth its then called a meteorite. |
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A comet is basiclly ice and gas (Dirtysnowball)
It has a 2 tails, that always point away from the sun |
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| The moon is a natural satellite. Theres more than 96 moons in our solar system. |
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| Is left-overs from when planets formed. Its a group of irregular rock objects. Most are in the asteroid belt and are 1-700 km across. |
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| Is a planet that we live on. The third planet from the sun. |
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| any of the four planets closest to the sun: Mercury, Venus, the earth, or Mars |
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| planets that are mostly made out of gas.Jupiter,Saturn,Uranus,Neptune |
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There are two Solstice. Winter and Summer solstice.
Winter Solstice: The day of the year that has the least amount of daylight
Summer Solstice: The day of the year with the most hours of daylight |
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Spring and Fall equinox: Results in equal hours of day and night (12 hours each)
Everywhere in the world, the sun will rise directly in the east and set directly in the west. |
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| the movement or path of the earth or a heavenly body turning on its axis. |
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| the orbiting of one heavenly body around another. |
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| An astronomical unit that is the distance from the sun to the earth. It is used to measure distances. |
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| The speed that light can travel in a year (300 000km/s) |
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The four main shapes of the room are Full,Cresent,quater, and Gibbious.
When the shadow of the moon is on the left its called waxing.
When the shadow is on the right it is called waning.
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Is a spherical cloud of comets believed to lie roughly nearly a light year from the sun (50 000AU)
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| the time taken for the Earth to complete its orbit around the Sun, 365.25 days. To account for the odd quarter day, an extra calendar day is added every four |
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Lunar Ecllipse: The moon moves into earths shadow
About 2-3 per years
Solar Ecllipse: The moon moves between the Earth and the Sun |
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| the point in the orbit of a planet or comet at which it is nearest to the sun. |
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| the point in the orbit of a planet or a comet at which it is farthest from the sun. |
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| At what angle is the earth axis titled? |
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Why do we have seasons? Describe it.
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The seasons are caused by the tilt of the earth along its axis.
Its hotter in the summer because the earth is tilted toward to sun. |
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| Mercury, Venus, Earth,Mars,Jupiter, Saturn,Uranus,Neptune |
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| What causes the lunar ecllipse?Solar ecllipse? |
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Lunar: The moon moves into earth shadow, and the shadow darkens the moon
Solar: The moon moves between earth and the sun. The moon casts a shawdow on part of the earth. |
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| List,describe, and explain the stages in the life cycle of a high mass star and low mass star. |
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Low mass star: Nebula,Main sequence star,white dwarf, then neutron star or black hole
High mass star: Nebula, Main sequence, Redgiant,White dwarf, Supernova, then Neutron star or black hole |
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Name and describe each phase of the moon
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Full Moon -> Waxing cresent ->First Quater -> Waxing gibbious ->Full Moon -> Wanning gibbious->Last quater->Waning Cresent->
[image]
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| Describe the stage of our sun and what will happen to it in the future |
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| Our sun is in its stable stage. In about 5billion years it will swell into a red giant. eventually become a white dwarf |
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| Why do oceans have tides? |
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| Tides are created because the Earth and the moon are attracted to each other, just like magnets are attracted to each other. The moon tries to pull at anything on the Earth to bring it closer. But, the Earth is able to hold onto everything except the water. Since the water is always moving, the Earth cannot hold onto it, and the moon is able to pull at it. Each day, there are two high tides and two low tides. The ocean is constantly moving from high tide to low tide, and then back to high tide |
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| Why is hotter in the summer? |
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| Because the tilt of the earth is closer to the sun. Not because the earth has actually moved closer to the sun. |
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| When did man land on the moon? |
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| List and describe the types of galaxies. What tye of galaxy do we live in? |
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Spiral Galaxy: Pinwheel-shaped galaxies like our own milky way. They have a flat disk like part that is filled with stars, gas, and dust. The stars wind outward from the center in spiral arms.Sometimes there is a spherical bulge in the center
Elliptical Galaxy: Galaxies without spiral arms. They are shaped like ellipsoids or spheres.
Irregular Galaxy: Small galaxies that do not have a well defined shape |
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| Name and describe the most common explanation for the orgin of the universe. |
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| God created earth. Another theory that is believed is the big bang theory. That everyone was once in something as tiny as an atom. It exploded creating all mattar. |
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