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E.science- astronomy

TermDefinition
What is an astreiod? small rocky objects that orbit the sun.
in between what planets is the astreiod belt located. Mars and jupiter.
what is a meteor? a streak of light in the sky.
what is a crater? a large bowl shaped cavity in the ground or on the surface of a planet or the moon.
what is an astreiod made of? metals and rocky materials.
what are comets made up of? ice, dust, and rocky material.
what is rotation? the action of rotating around the axis.
what is gravity? a force that attracts a body towards the center of the earth or toward any other physical body having mass.
Where does gravity pull you when you stand on Earth? towards the center.
What are the two factors that affect the gravitational attraction between objects? mass and distance.
what is mass? the amount of material in an object.
what is weight? the measure of amount of downwards force that gravity exerts on an object.
How does gravity affect the orbital velocities of planets? it makes it decrease and move slower.
deflection objects curved to the curved right in the north hemisphere and to the left in south hemisphere.
what angle is earths axis tilted on? 23.5 degrees.
revolution orbiting around the sun.
red shift universe is expanding
blue shift objects are moving towards us.
eccentric oval shape
Created by: 900006690
Popular Earth Science sets

 

 



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