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37 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is supernova
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Supernova is a star that explodes
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what is astroid
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astroid is a rocky, metallic object that orbits the sun
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what is magnitude
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magnitude is the brightness of a star
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what is parallax
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parallax is the apparent shift in an object's location when viewed from two positions
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what is quasar
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quasar is an extremely bright, extremely distant high-energy source, shining with the light of a trillion suns
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what is nebula
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nebula is an enormous cloud of gas and dust in space that is the first stage of the star's formation
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what is spectrum
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spectrum is a band of colors made when white light is broken up
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what is a comet
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a comet is a ball of ice and rock that orbits the sun. comets come from the outer frindges of the solar system and circle the sun in long eliptical orbits
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what is a star
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a star is a large, hot ball of gases, which is held together by gravity and gives off its own light
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what is a meteor
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a meteor is a meteroid that enters a Earth's atmosphere and burns with a streak of light
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how can we use constellations to help us learn about stars?
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We can use constellations to help us learn about stars because a constellation is a number of stars that appear to form a pattern. At Earth travels in its orbit around the sun, its night side faces different directions. You see only the constellations that are in that direction.
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what is the milky way
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the milky way is the medium sized spiral galaxy that is our home galaxy.
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what are characteristics of milky way
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stars are grouped together in a bulge in and around the center. All stars in the MW orbit its center. The closer the star is to the cneter, the faster it moves in its orbit. Several spiral arms of stars extend out from the center. Getting farther away from the center the stars become lessd
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what is a comet
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a comet is a ball of ice and rock that orbits the sun. Comets come from the outer fringes of the solar system. A comet becomes visible as the chunk of rock and ice approaches the sun and the sunlight begins to warm it. The sunlight puts pressure on the cloud which forms a tail and the tail always points away from the sun
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what is an asteroid and what is it made of?
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an astroid is a rocky or metallic object that orbits the sun. they are too small to be considered planets.
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what is the big bang therory? *Essay
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The big bang theory is the beginning moment of the universe when the density and temperature of the universe were very high. According to this theory, the universe has expanded ever since the big bang. Before the Big Bang,galaxies were close together. As the universe expanded, it caused the galaxies to spread out.
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Stars
(temp/color/red giants),of a star) *essay |
A star's color is related to its surface temperature. The coolest stars are red and orange. Hotter stars are yellow, and the hottest are blue-white. Surface temperature, size, and the distance from Earth are what determine the star's brightness. The higher the temp, the brighter the star. Usually, the larger the star, the bright it is too. White dwarfs are the small stars and the red supergiants are the largest stars (the sun is an average size star).
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How does mass affect an object (planet, star, human)
*essay |
Get 2 different objects (different in weight) and throw them. Record the path it takes,and it's speed.
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(expirement)
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How does pollution afffect scientists?
*essay |
c
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Describe Earth's atmosphere
*essay |
Earth is the third planet from the sun. Earth's atmosphere is made up of 78% nitrogen and 21% oxygen.
Earth's atmosphere is divided into several layers. The troposphere is near the surface. All weather occurs in this layer. The stratosphere is the layer just about the stratosphere. Ozone in this layer helps absorb harmful ultraviolet radiation from the sun. Above the stratosphere is the mesophere and above it, the thermosphere. |
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the distance to close stars can be measured using
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parallax
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a distant, bright source of high energy is a
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quasar
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one type of exploding star is a
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supernova
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a group of stars held together by gravity is a
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galaxy
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the sun and all the objects in orbit around it is the
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solar system
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the distance light travels in a year is a
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light year
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an enormous cloud of gas and dust in space that is the beginning of a star is a
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nebula
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a ____ is a ball of ice and rock tht orbits the sun
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comet
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a _____ is a large, hot ball of gas that gives off it's own light
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star
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nine ____ are in the orbit around the sun
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planets
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what object's gravity is so strong that even light cannot escape it?
white dwarf black hole nebula neutron star |
black holes
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what do astronomers call the patterns we see in the stars?
galaxies solar systems constellations H R diagram |
constellations
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what do astronomers call a meteor that has landed on earth?
meteorite meteor meteoroid crater |
meteorite
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all of the following are shapes of galaxies EXCEPT
spiral elliptical irregular round |
round
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the brightness of a star is it's
expansion magnitude temperature redshift |
magnitude
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what is the life cycle of a star
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born, mature, grow old, die...
A star begins as an enormous cloud of dust (nebula). Then the cloud becomes a young star, a protostar. The protostar goes thru nuclear reaction and turns into a mainsequence star. A star spends most of its life as a mainsequence star. As the star uses up it's supply of hydrogen at its core it begins to expand. As it expands, it gets cooler. |
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What are the layers of Earth's atmosphere
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Troposphere
Stratosphere mesosphere thermosphere |
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