The earth and the universe

juli1487's version from 2015-11-09 22:52

Section 1

Question Answer
what is the only star and the biggest on our solar system?the sun
how many planets are there?8 planets
which one was considered a planet before?pluto
How is venus described as?the hottest planet
which is the third planet from the sun?earth
How many days does it take for the earth to revolve around the sun?365 days
what is earth mainly covered by?water
how many days does it take for the moon to revolve around the earth?28 days
how are the rocky bodies in the solar system called?asteroids


Question Answer
How many layers does the earth have?4
it is the layer that you live onthe crust
this layer is hotter than the crust and has the ability to flowthe mantle
these layers are the hottestthe outer and inner cores
this layer has only 8 kilometers thick under the oceans and 25 kilometers under the continentsthe crust
this is the largest layer of the earth with 2896 kilometers thickthe mantle
What are the two main metals that make up the outer and inner core? nickel and iron

Section 2

Question Answer
this includes the crust and the uppermost mantle, which constitute the hard and rigid outer layer of the Earthlithosphere
this is the layer of gases surrounding the planet Earth that is retained by Earth's gravityatmosphere
this is the second major layer of Earth's atmosphere, just above the troposphere, and below the mesospherestratosphere
this is the lowest portion of Earth's atmospheretroposphere
this is the layer of the Earth's atmosphere that is directly above the stratopause and directly below the mesopausemesosphere
this is a region of Earth's upper atmosphere, and includes the thermosphere and parts of the mesosphere and exosphereionosphere
this is a thin, atmosphere-like volume surrounding a planetary body where molecules are gravitationally bound to that bodyexosphere
this layer refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiationozone layer