ES Early Astronomy Review Formative

Ancient Greek mathematician who calculated the circumference of the Earth.

• Aristotle

• Ptolemy

• Eratosthenes

• Copernicus

Proposed that Earth was round based on the shadow it cast during a lunar eclipse.

• Aristotle

• Aristarchus

• Galileo

• Ptolemy

Tags

NGSS.MS-ESS1-1

Discovered that Venus has phases just like the moon.

• Copernicus

• Ptolemy

• Newton

• Galileo

Tags

NGSS.HS-ESS1-2

Discovered three laws of planetary motion, the elliptical orbits of planets, and the astronomical unit (AU).

• Galileo

• Newton

• Kepler

• Brahe

Developed the Law of Universal Gravitation that explained the gravitational attraction between objects in the universe.

• Newton

• Kepler

• Galileo

• Aristotle

Tags

NGSS.HS-PS2-4

First astronomer to have the use of a telescope.

• Copernicus

• Ptolemy

• Newton

• Galileo

Modern astronomer who concluded that Earth is a planet and proposed a solar system with the sun at the center.

• Brahe

• Galileo

• Copernicus

• Newton

Tags

NGSS.MS-ESS1-1

Studied planets for 20 years without the use of a telescope, yet made very precise observations of Mars.

• Copernicus

• Ptolemy

• Brahe

• Galileo

Greek astronomer who explained retrograde motion with his epicycle model of planetary orbits.

• Ptolemy

• Aristarchus

• Aristotle

• Copernicus

Discovered sunspots and that the moon's surface is not smooth.

• Copernicus

• Ptolemy

• Newton

• Galileo