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50 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Light year |
a unit of distance equivalent to the distance that light travels in one year.
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Galaxy |
a system of millions or billions of stars.
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Elliptical Galaxy |
a type of galaxy having an approximately ellipsoidal shape
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Spiral Galaxy
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Type of Galaxy that has 2 or more arms stretching out. |
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Irregular Galaxy |
a galaxy that does not have a distinct regular shape
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Planets |
a celestial body moving in an elliptical orbit around a star.
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Moons |
the natural satellite of the earth
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Asteroids |
small, airless rocky worlds that revolve around the sun
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Comets |
is an icy small body that when passing close to the Sun, heats up and begins to outgas
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Meteoroids |
is a piece of stony or metallic debris which travels in outer space.
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Roatation |
When the earth rotates on its axis
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Revolution |
When the earth orbits the sun
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Seasons |
Different times a year with different weather
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Tilt |
When the earth is twisted on an angle
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Summer solstice |
Usually around June when the days are shorter/longer
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Winter solstice |
Usually around December when the days are longer/shorter
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Autumnal Equinox |
Usually around Fall seasons when day and night are equal
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Vernal Equinox |
Usually around Spring seasons when the days and nights are equal
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Indirect light |
When the rays from the sun don't directly hit earth
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Direct light |
When the Rays from sun hits he sun straightly |
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Lunar Movement |
the movement of an object around the moon
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Moon Phases |
the shape of the illuminated portion of the Moon
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New moon |
When the moon is completely dark |
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Waxing Crescent |
moon is less than one-half illuminated by the sun
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First quarter |
The moon is one-half illuminated by the sun.
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Waxing gibbous |
The moon is more than one-half illuminated by the sun
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Full moon |
The moon is totally visible in the sky
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Waning Gibbous |
The moon is more than one-half illuminated by the sun
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3rd/Last quarter |
The moon is one-half illuminated by the sun.
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Waning crescent |
The moon is less than one-half illuminated by the sun
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Meteor |
a small body of matter from outer space
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Meteorite |
a meteor that survives its passage through the earth's atmosphere
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Sun |
the star around which the earth orbits.
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Photosphere |
the luminous envelope of a star from which its light and heat radiate.
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Corona |
Th gaseous flaring fire around the sun |
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Sunspot |
Dark spots on the sun and cooler than other spots |
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Prominence |
A prominence is a large, bright, gaseous feature
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Solar flares |
Occur when magnetic energy is built up in the atmosphere |
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Auroras |
Auroras are a spectacular sign that our planet is electrically connected to the Sun
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Solar wind |
The solar wind is a stream of energized, charged particle
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Distance-Time Graph |
Represents the speed of an object and its direction |
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Motion |
action or process of brig somewhat moved
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Position |
a place where someone or something is located or has been put.
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Direction |
a course along which someone or something moves.
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Refrence point |
a basis or standard for evaluation
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Speed |
the rate at which someone or something is able to move or operate
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Steep slope on a Graph |
The measure of steep the line goes in a graph |
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Flatter slope on a graph |
one line is slower than the other or breaking off |
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Zero slope on a graph |
When there is no increase in distance or just sits there |
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Formula for average speed |
Formula: Speed=distance divided by time |
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