the air around a PLANET
The atmosphere of the Earth is rich with the elements needed for life.
crater
a large hole in the earth's surface that is usually caused by the impact of a large object
The craters we can see on the surface of the moon.
destroy
to damage something so that it cannot be repaired
The storm destroyed the old barn.
enormous
very large; unusually large
The enormous machine did not fit through the door.
erosion
the act or process where something is slowly reduced or destroyed over time by contact with water, wind, or ice
River erosion created the Grand Canyon.
estimate
to make a general guess or judgment without using exact calculations regarding the value, quality, or nature of something
I estimate about a hundred thousand people will come to the city for the festival.
meteoroid
a body moving in the solar system that is smaller than an asteroid and would become a meteor if it entered Earth's atmosphere
Space is full of rock-like objects of all sizes called meteoroids.
recognize
to identify or remember someone or something from past knowledge or experience
Although the lady knew me, I couldn't recognize her.
shooting star
a streak of light in the sky at night that results when a meteoroid hits the earth's atmosphere and air friction causes the meteoroid to melt or vaporize or explode
As they watched the shooting star, they made a wish.
vegetation
plants that grow in a specific area or plants in general
The thick vegetation of the jungle prevented the people from exploring the area.