Lesson 6 Flashcards
(8 cards)
1
Q
Asteroid
A
A small rocky body orbiting around the sun.
2
Q
Astronomer
A
An expert in or student of astronomy.
3
Q
Black hole
A
A region of space having a gravitational field so intense that no matter or radiation can escape.
4
Q
Experimental
A
(Of a invention of product) based on untested ideas or techniques and not yet established or finalized.
5
Q
Galaxy
A
A system of millions or billions of stars, together with gas or dust by gravitational attraction.
6
Q
Mechanics
A
The machinery or working parts.
The branch of applied mathematics dealing with forces and motion.
7
Q
Meteor
A
A streak of light, an atmospheric phenomenon, such as lightning or a snowfall.
8
Q
Meteorite
A
A meteor that reaches the surface of the earth without being completely vaporized.
