Shared Flashcard Set

Details

science
space
20
Science
9th Grade
04/20/2012

Additional Science Flashcards

 


 

Cards

Term
what are inner planets?
Definition
The inner planets are the planets in the inner part of the Solar System that orbit closest to the sun. The 4 inner planets are Mercury,Venus,earth,mars and they are mostly rockey.
Term
what are Outer planets?
Definition
what are the outer planets? jupiter,saturn,uranus and neptune. These gas gaints are known for their gaseous atmosphere,large size and cool temperatures.
Term
what is a lunar eclipse?
Definition
what happens? Earth passes between the sun and the moon ,briefly plunging the moon into the darkness as earth shadow moves across it .
Term
What makes up our solar system ?
Definition
Asteroids,Oort cloud,Dwarf planets ,Transneptunian objects ,Outer planets , Inner planets , Kuiper belt ,Meteroids,comets
Term
what are Comets?
Definition
Made up of rock and ice , that orbit the sun .
Term
what are Meteoroids?
Definition
Meteoroids Are made of chunks of rock ,metal,or both that are shed from asteroids or comets
Term
Dwarf planets
Definition
Can be found in the Kuiper belt like pluto.
Term
what is a Oort cloud?
Definition
Rocky material left over from the formation of the solar system is found in an area at the outer reaches of the solar system called the Oort clould .
Term
what is a Solar eclipse?
Definition
The moon passes between the sun and earth briefly blocking .
Term
what is Gravitational pull?
Definition
Gravitational pull is what makes the planets orbit around the sun .
Term
Stars
Definition
star are huge balls of gas on fire eg. our sun, Alpha Centuri, the North Star.
Term
Constellations
Definition
Constellations are groups of stars that appear to form a picture eg. the Big Dipper.
Term
Stars are light years away.
Light year
Definition
The distance light travels in a year (9.5 x 1012 km)
Term
Rotation
Definition
Planetary rotation causes night and day. When the face of the planet is nearest the sun, it is day. When the face of the planet is away from the sun, it is night.
Term
Revolution
Definition
Planetary revolution causes years to pass. It takes one year for the earth to revolve around the sun.
Term
celestial
Definition
the word meaens sky
Term
what characteristics descride stars?
Definition
Colour,brightness
Term
name the galaxy where we live in
Definition
Milky way
Term
Distance between the sun andneptune ?
Definition
30 AU
Term
name the largest galaxy nearest to our milky way ?
Definition
andromeda
Supporting users have an ad free experience!