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Lesson 11

Outer Space

WordDefinition
adrift without direction or anchor
asteroid one of many rocky bodies that revolve around the sun
astronomer a scientist who studies the sun, moon, planets, and stars
biosphere the part of the earth that supports life
celestial of the sky or heavens
diameter the distance from one side of a circle or sphere to the other through the center
diffuse to spread out and cover a large area
elliptical shaped like an oval
envision to picture in your mind
existence a state of being or existing
extraterrestrial beyond or outside the earth
galaxy billions of stars in a group that form one system
gravitate to move towards a body by force of gravity
lunar of the moon
meteorite a piece of stone or metal that comes from space and falls through Earth's atmosphere
observatory a building with a telescope for observing stars and other heavenly bodies
reflect to thro back light, heat, or sound
revolve to move around a central point
shuttle a vehicle that runs back and forth over a distance
solar of the sun
Created by: hgrant
Popular English Vocabulary sets

 

 



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