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53 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What are the gas giants?
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Jupiter, Saturn, Uranus, and Neptune
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What is the most massive planet?
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Jupiter
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The great Red Spot is a storm where?
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on Jupiter
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What is a meteroid?
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A chunk of rock or dust in space
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What do meteroids usually come from
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Comets or asteroids.
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How many moons does Jupiter have?
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4
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What is the second largest planet in the solar system?
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Saturn
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What is a meteroid called when it passes through Earth's atmosphere and hits Earth's surface?
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A meterorite
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What are the outer planets?
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Jupiter, Saturn, Uranus, Neptune,& Pluto
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What are Saturns rings made out of?
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Chunks of ice and dust
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How many moons does Saturn have?
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5
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Why does Uranus look blueish?
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Because of traces of methane in its atmosphere.
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How many moons does Uranus have?
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20
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How was Neptune discovered?
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Uranus was not following its predicted orbit and astronomers thought it was due to another planets gravational force.
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How many moons does Neptune have?
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8
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What is the name of plutos moon?
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Charon
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Why are Pluto and Charon considered to be one planet.
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Since pluto is about 2/3 the size of Earth's moon and Charon is about 1/2 the size of that they are consuidered to be a single planet.
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What is the streak of light crested by a meteroid?
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A meteor
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Which system does our solar system have?
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Heliocentric
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how does Pluto differ from the gas giants and what is it more like?
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Pluto is small and has a rocky surface while the gas giants are made mostly of gas and have no surface. It is more like the terrestrial planets.
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what is a comet?
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A comet is a chunk of ice or dust
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What are comets orbits like?
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They are very long narrow ellipses
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what are asteroids?
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Small planet like rocks
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where are most asteroids found and what is this place called?
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They are mostly found revolving around the sun between Mars and Jupiter.
This is known as the asteroid belt. |
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What percent of the sun is hydrogen?
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75%
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What percent of the sun is helium?
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25%
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How old is the sun?
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5 billion years old?
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A small amount of the sun is what?
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chemical elements.
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True or False:
The sun is the most powerful force in the solar system? |
True
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What is the North stars name?
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Polaris
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What is a geocentric system?
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It is when Earth is the center of revolving planets.
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What did Kepler discover about the orbit of each planet?
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That each orbit has an ellipse.
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What shape is the ellipse?
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An oval shape
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What is inertia?
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Inertia is the tendency of a moving object to continue in a straight line or for a stationary objet to remain in one place.
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The sun is what?
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A ball of glowing gas.
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The sun's energy comes from _______ ______ inside.
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Nuclear fusion
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What percent of the mass in the solar system comes from the sun?
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99.8%
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The sun is Earth's main source of what?
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Energy
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What is nuclear fusion?
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It is when hydrogen atoms join together to form helium.
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What only occurs under high pressure and temperature?
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Nuclear fusion.
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The temperature in the sun's center reaches about what degree?
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15 million degrees Celcius.
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Celcius
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True of False:
The temperature in the sun's core is hot enough for nucler fusion to occur? |
True.
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There is enough hydrogen in the sun to last for how many years?
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10 billion years
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What is the inner layer of the sun's atmosphere called?
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The Photosphere
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What is the middle layer of the sun's atmosphere called?
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The Chromosphere.l
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What is the outer layer of the sun's layer called?
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The Corona.
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What does the corona send out?
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A stream of electrically charged particles called solar wind.
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When the solar wind hits Earth, what does it cause?
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Auroras.
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What are three features on or above the sun?
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Sunspots, Prominces, and Solar Flares
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What are sunspots?
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Areas of gas that are cooler than the areas aruond them.
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What are prominences?
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Reddish loops of gas.
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What are solar flares?
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The explosion that hydrogan gas creates when it explodes into space.
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What is a heliocentric system?
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It is when the sun is the center of the revolving planets?
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