Science - Quiz 29 Solar System Flashcards
Polish astronomer who proposed a heliocentric system of the universe
Nicolaus Copernicus
scientist who discovered the law of universal gravitation
Sir Isaac Newton
astronomer whose book Almagest mathematically described the geocentric view of the universe
Ptolemy
astronomer who discovered that the planets do not travel in circles
Johannes Kepler
astronomer who discovered the phases of Venus
Galileo Galilei
the symmetrical oval shape of a planet’s orbit
ellipse
a planet’s closest point to the sun
perihelion
why planets sometimes appear to move “backward” through the sky
Earth travels faster than the outer planets
the study of God’s creation beyond our atmosphere
astronomy
the sun, planets, the planets’ moons, and other smaller bodies that orbit the sun form the…
solar system