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AST 114 Chapters 1, 3, and 4 Crossword Puzzle

Complete the puzzle with your name and submit it by the due date for extra credit.  Some entries are more than one word separated by a space.
Horizontales
Force between two masses separated by a distance
Also known as the Law of Equal Areas
Shape of planetary orbits stated in First Law
View of Universe with Sun at the center
States that scientific laws are the same throughout the Universe and Earth's location is not special
Examples are AU and ly
First to publish the heliocentric model
Massive star from which even light cannot escape its gravity
Objects always return in one of these
Verticales
Position change per unit time plus direction
Published three laws of planetary motion in the early 1600s
First to observe the cosmos using a telescope
States that object farthest from the Sun take longer to orbit and do so more slowly
Method for representing very large and small numbers in short-hand notation
Motion of object when only gravity is acting on it
One of greatest scientists ever and stated laws scientifically
Phrase that means that life forms consist of chemical elements in the Universe
Procedure used to test the validity of scientific hypotheses and theories
Objects never return in these
View of Universe with Earth at the center
Change in speed or direction of both
Objects inside this invisible boundary get torn apart by tidal forces
Rate of change of position