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Topic 8 Science

QuestionAnswer
asteroids one of many small, rocky objects between Mars and Jupiter
comet a mixture of ice, frozen gasses, rock and dust left over from the formation of the solar system.
constellations any of the patterns that are formed by a group of stars in the night sky
gravity the force of attraction between any two ofjects due to their mass
inertia the tendency of a moving object to keep moving in a straight line and of any object to resist a change in motion
planet a large object that orbits a star and does not produce its own light
revolution one complete trip of one object around another object
satellite a natural or artificial object in space that circles around another object
star an object that produces its own energy, including heat and light
telescope an instrument that makes distant objects appear larger
moon a natural object that orbits a planet
rotation 1 day - 24 hours. The earth spinning on its axis
revolution one complete trip around the sun - 365 1/4 days - one year
solar eclipse the moon passes between earth and sun
lunar eclipse the earth is between the sun and the moon
umbra area where light is completely blocked in an eclipse (dark!)
penumbra area where light is partially blocked in an eclipse
nebula start of a star - gas and dust
protostar step after nebula in the formation of a star
star step after protostar in the formation of a star
red giant when a star gains more heat and expands
white dwarf a medium star grows dimmer and colder
super nova when a large star gains heat and explodes
black hole when a massive star explodes and has so much gravity the light can't escape
Mercury 1st inner planet
Venus 2nd inner planet
Earth 3rd inner planet
Mars 4th inner planet
Jupiter 5th planet - outer planet
Saturn 6th planet - outer planet
Uranus 7th planet - outer planet
Neptune 8th planet - outer planet
inner planets made of rock
outer planets made of gasses
spiral galaxy group of stars that looks like a pinwheel
elliptical galaxy round group of stars
irregular galaxy group of stars that looks like a blob or cloud
Big Bang Theory Theory that the universe started with a big explosion and has been expanding ever since.
Age of universe 13.7 billion years
Created by: mbeaulier
Popular Earth Science sets

 

 



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