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19 Cards in this Set

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  • Back
The earth experiences seasons because
Because tilted on it's axis
The northern hemisphere experiences summer when the southern hemisphere experiences...
Winter
During.......... in the northern hemisphere the north pole is pointed towards the sun.
Summer
During......... in the northern hemisphere the north pole is pointed away from the sun.
Winter
The ............ is the day when the hours of daylight are equal to the hours of darkness .
Equinox
The............... ................. is the shortest day of the year because it has the fewest hours of day light.
Winter solstice
The first day of spring is also called the..........
vernal equnox
The first day of fall is also called the........
fall equinox
We live in the ................. .............. galaxy
Milky way
the star closed to earth is the..........
sun
............ is also known as the north star, this star does not move
Polaris
Name three different types of galaxies
Elliptical, Irregular, Spiral
The blue giant ............., the red giant ........ are found in the constellation ............
The Blue giant Rigel, the red giant Betelgeuse, are located in the constellation Orion.
a star that has exploded is called a
super nova
a cloud of gas and dust where stars are born are called
nebulae
the earth ...........around once on it's axle every 24 hours
rotates
the earth ........... around the sun once every 365 days
orbits
Tycho Brahe
thought that the earth was the center of the universe
discovered nova and comet
1546-1601
Gallileo Gallili
thought that the sun was the center of the universe
saw that moon had craters
1564-1642