earth and space Flashcards
stream of high energy particles sent into space
solar wind
causes the light displays aurora borealis and aurora australis
solar wind
type of solar wind that is seen from the Northern Hemisphere
aurora borealis
types of solar wind that is seen from the Southern Hemisphere
aurora australis
storms that look like huge arches and may last several days
prominences
more intense than prominences and lasts only about fifteen (15) minutes
solar flares
cool black storm areas
sunspots
heads of ice and rock and tails of dust and gases forced from the head by solar radiation
comets
its tail always points away from the sun
comets
chunk of rock or metal smaller than an asteroid
meteoroid
a meteoroid as it burns up in the atmosphere or can be called shooting star
meteor
a meteoroid that does not completely burn up
meteoroid
two (2) types of tides
spring tides and neap tides
strongest tides, highest and lowest tides
spring tides
when the sun, earth, and moon are in a straight line where the sun’s and moon’s gravities add up
spring tides
weakest tides, moderate tides
neap tides
when the sun, earth, and moon form a right angle and the sun’s and moon’s gravities cancel out one another
neap tides
what are the ten given common stars and constellations in the handbook?
- polaris
- sirius
- ursa major
- ursa minor
- canis major
- canis minor
- orion
- proxima centauri
- alpha centauri
- pegasus
north star, tip of the Little Dipper’s “handle”
Polaris
brightest star in the night sky, “Dog Star”
Sirius
Big Bear, contains the Big Dipper
Ursa Major
Big Dog, contains Sirius
Canis Major
Little Dog
Canis Minor
The Hunter
Orion
closest star to Earth but is too small to be seen in the night sky
Proxima Centauri
closest star to the Earth that is visible in the night sky
Alpha Centauri
The Winged Horse
Pegasus
the distance that light travels in one year
light year
the galaxy where the solar system is
Milky Way
the explosion of a big star
supernova
remains of a supernova explosion with very strong gravity from which nothing can escape
black hole
this is the layer of the earth from the crust down to the rigid upper mantle
lithosphere
Why is the outer core liquid?
It is due to the temperature from the core.
Why is the inner core solid?
It is because of the pressure from the upper layers of the Earth.
What are the three plate boundaries?
Divergent, Convergent, Transform
This plate boundary has its plates move away from each other.
Divergent Plate Boundaries
What do divergent plate boundaries form?
Mid-Ocean Ridges
This plate boundary has its plates move toward each other.
Convergent Plate Boundaries
What are the three types of convergent plate boundaries?
Oceanic-Oceanic, Oceanic-Continental, Continental-Continental
This is a type of convergent plate boundary where one of the two oceanic plates is subducted into the mantle and its magma rises.
Oceanic-Oceanic
This forms volcanoes and creates trenches.
Oceanic-Oceanic
This is a type of convergent plate boundary where the oceanic plate is subducted into the mantle and the magma rises.
Oceanic-Continental