character: Johannes Kepler
topic: Planetary Motion and Ellipses
grade: 9
subject: Mathematics
LearnActions
SearchCreate
character: Isaac Newton
topic: Law of Universal Gravitation
grade: 9
subject: Mathematics
LearnActions
SearchCreate
character: Galileo Galilei
topic: Observations of Celestial Bodies
grade: 9
subject: Mathematics
LearnActions
SearchCreate
character: Copernicus
topic: Heliocentric Theory
grade: 9
subject: Mathematics
LearnActions
SearchCreate