Began a new era of astronomy when he concluded that the Sun was the center of the universe.

• Aristotle
• Isaac Newton
• Claudius Ptolemy
• Nicolaus Copernicus

Built a telescope and made discoveries which changed astronomy; discovered 4 moons of Jupiter.

• Galileo Galilei
• Aristotle
• William Herschel
• Claudius Ptolemy

The Greeks and other early astronomers had little technology available they had to rely on their own ________.

• observations

• telescopes

• Iphone 10

• spheres

The study of the universe

• Galaxy
• Geocentric
• Astonomy
• Heliocentric

Science or Pseudoscience:  Changing the data so that it supports my prediction.

• Science
• Pseudoscience

Built a telescope and made discoveries which changed astronomy; discovered 4 moons of Jupiter.

• Galileo Galilei
• Aristotle
• William Herschel
• Claudius Ptolemy

Built an observatory and made the most accurate astronomical observations for more than 20 yrs.

• Giovanni Cassini
• Tycho Brahe
• Hipparchus
• Isaac Newton

Which astronomer created the 3 laws of planetary motion?

• Bruno

• Einstein

• Copernicus

• Kepler

Which model of the solar system has the sun in the center with all of the planets orbiting it?

• heliocentric

• geocentric

Planets orbit the Sun in a shape called a(n)

• circle
• ellipse
• focus
• perihelion