Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
24 Cards in this Set
- Front
- Back
|
Solar System |
It is the eight planets and numerous other objects. |
|
|
Astronomical Units |
150 million km. |
|
|
comet |
a large body of ic and rock that travels around the sun. |
|
|
Meteorites |
are any fragment from space that survive the plunge throught the Earth's atmosphere |
|
|
rotation |
the spinning of Earths its axis |
|
|
orbits |
a curved path around another object |
|
|
revolution |
the movement of the Earth around the sun is called the revolution |
|
|
lunar highland |
the mountanas areas of the moon |
|
|
Maria |
the smooth darklands of the moon |
|
|
eclipse |
the blocking the sunlight to the Earth |
|
|
Tides |
alternate rise and fall in sea level |
|
|
Gravity |
the natural force of attraction (pull between any two massive bodies,such as planets,stars,moon,etc.) |
|
|
Lunar |
having to do with our Moon |
|
|
Lunar cycle |
The orbit revolution fo the moon around the Earth.... about 27 days. Its important to note that that takes about 29 days between the same lunar phase each month due to the change in Earth's position in its revolution around the Sun. |
|
|
Mean |
On a tidechart or graph (".0" feet or meters); the average height of the water caculated from all low tides over a long period of time. |
|
|
Minus Tide |
A strong low tide the water level during the low tide is lower than that of the mean low water; usually occuring during the spring tides. |
|
|
Moon's phases |
Positions of the moon in its lunar cycle relative to the Earth and sun; identified by the way the moon is illuminated by sunlight |
|
|
pogec |
Point which the moon is at its furthest distance from the Earth during the Lunar cycle |
|
|
Pengee |
Point at which the moon is closest to the Earth during the lunar cycle |
|
|
Spring tide |
A period of strong tides occuring twice during a lunar cycle druing the full and and new moon phases. |
|
|
Neap Tides |
A period of weak tides occuring twice during a lunar cycle,during the first and last quater phases of the moon. |
|
|
Spiral Galaxy |
Spiral galaxies consist of a large, flat disk of interstellar gas and dust with arms of stars extending from the disk in a spiral pattern. The Andromeda Galaxy, one of the Milky Way Galaxy's closest neighbors, is a spiral galaxy. |
|
|
Irregular Galaxy |
Some galaxies are neither spiral nor elliptical.Their shape seems to follow no set pattern, so astronomers have given them the general classification of irregular. |
|
|
Elliptical Galaxy |
They are nearly spherical to oval in shape and consist of a tightly pakced group of relaticely old stars |
