Part 4 Seasons: Earth, Moon Sun (Early Astronomy)

____________ discovered the size of the Earth. (276-194 BC)

• Greeks

• Eratosthenes

• Hipparchus

• Ptolemy

__________ used Geometry and Trigonometry to measure the sizes and distances fo the sun and the moon.

• Ptolemy

• Hipparchus

• Greeks

• Eratosthenes

____________ named 850 stars and cataloged them by location and brightness.

• Greeks

• Ptolemy

• Eratoshthenes

• Hipparchus

_____________ model states that all planets and Sun orbit the Earth.

• Geocentric

• Heliocentric

___________ idea of a Geocentric model was unchallenged for nearly 13 centuries.

• Greeks

• Ptolemy

• Hipparchus

• Eratosthenes

_______________model showed the Sun at the center of the Universe.

• Geocentric

• Heliocentric

_____________ was the first Astronomer to introduce the Heliocentric model, but his math calculations were small so it was not accepted for over 2,000 years.

• Greeks

• Ptolemy

• Aristarchus

• Hipparchus

____________ _________ made the 3 laws of Planetary motion and stated that planets orbits are ellipses.

• Galileo Galilei

• Isaac Newton

• Johannes Kepler

Sir __________ __________ explained the forces involved in planetary motion.

• Johannes Kepler

• Isaac Newton

• Galileo Galilei

Tags

NGSS.HS-PS2-4

NGSS.HS-ESS1-4

Sir Isaac Newton discovered the

• Sun

• Law of Universal Gravitation

• Moon

• chocolate chip cookies

Tags

NGSS.HS-PS2-4