Domain 3 Flashcards
waht are the terrestiral planets in the solar system?
mercury
venus
earth
mars
what are the four gas giants in the solar system?
jupiter
saturn
uranus
neptune
what is a comet?
small solar system body that orbits the sun and exhibits a tail
what are asteroids?
minor planets that are smaller than planets but larger than mmeteoroids
what is the moon cycle?
new moon
waxing crescent
first quarter
waxing gibbous
full moon
waning gibbous
last quarter
waning crescent
what happens in a lunar eclipse?
the earth passes between the moon and the sun
what happens in a solar eclipse?
the moon passes between the earth and sun
what are galaxies?
systems of stars
what causes seasons?
the Earth’s axis being tilted by 23.5 degrees
how are seasons marked?
changes in amount of sunlight
what causes seasonal weather differences between hemispheres?
Earth’s elliptical orbit
what are equinoxes?
the tilt of the Earth’s axis is not oriented towards or away from the sun
how often does the moon travel around the earth?
each month
how are standard time zones established?
geometrically subdividing the earth’s spheroid into 24 parts bordered by meridians
what is the perihelion?
Earth’s closest point to the Sun
what is an aphelion?
the Earth’s furthest point to the Sun
what do seasonal weather fluctuations depend on?
proximity to large bodies of water
what are the types of rocks?
sedimentary
igneous
metamorphic
how are sedimentary rocks formed?
deposition and consolidation of mideral and organic material
how are igneous rocks formed?
solidification of cooled magma
what is a plutonic rock?
an ignous rock that forms below the surface
what is an volcanic rock?
an igneous rock that forms on the surface
how is a metamorphic rock formed?
an existing rock type is transformed through heat and pressure
what is a protolith?
the exisiting rock form in a methamorphic rock
what are minerals?
natural chemical copounds that are the crystals that make up a rock
what is a mountain?
a landform that stretches above the surrounding land in a limited area with a peak
what is a river?
a natural flow of water towards another body of water
what is a dessert?
1/3 of the earth’s land surface with long days and extreme temperatures