The Best Crossword Puzzle Maker Online
Powered by BrightSprout
Save Status:
or to save your progress. The page will not refresh.
Controls:
SPACEBAR SWITCHES TYPING DIRECTION
Answer Key:
Edit a Copy:
Make Your Own:
Crossword Word Search Worksheet
Rate This Puzzle:
Log in or sign up to rate this puzzle.

Ch2 Vocabulary: Who am I/what am I?

Astronomy crossword puzzle
Across
I am a solar system model in which the Sun at the center of the solar system.
During retrograde motion a planet will appear to move ________ direction
I studied and improved not only astronomy but also physics and mathematics, I discovered the gravity and laws of motion
We the ancient astronomers could not see the apparent shift of the nearby stars against the distant ones, which you call it ___
I am the first person to use telescope to study heavens
I thought that the earth must be round because sphere shape is the perfect shape for the God!
I observed the the shape of the earth's shadow on the moon during lunar eclipse to prove earth is round
Around 400-347 BC I proposed a geocentric model for the heavens where everyone of them revolved on their transparent sphere
I observed some moons of jupiter, as well as the sun spots.
I am the only geocentric astronomer during Renaissance
Down
The farther out a planet is from the sun, the longer it will take to complete one orbit around the sun
The closer the planets get to the sun, the faster they travel on their orbit
I discovered the planet Uranus
I am a flattened oval shape that has two focus points
I measured the Earth's circumference
I measured the sizes and distances of the Sun and Moon relative to Earth
I said the sun must be in the center of the solar system during Renaissance for the first time
I developed the laws of planetary motion
I improved the geocentric model by coming up with epicycles to explain retrograde motion
Planets move on elliptical orbits with the Sun at one focus of the ellipse