Kepler's Life
He was born in this European country in 1571. (hint: it starts with G)
Germany
His First Law says planets move in these oval-shaped paths. (hint: not circles)
ellipses
He found that Mars’ orbit was this shape
ellipse
NASA named a space telescope after him to find these
Exoplanets
As a child, his favorite subject was?
math
His Second Law says planets move faster when they are closer to this.
Sun
He proved that planets do not move at a steady ____
Speed
His studies helped people understand that the Sun, not Earth, is at the center. (hint: opposite of geocentric)
heliocentric
Kepler worked for this Danish astronomer
Tycho Brahe
His Third Law connects a planet’s distance from the Sun to this. (hint: how long a year is)
orbital period
He wrote three famous books about planetary motion called the “Laws of the ____.”
planets
Kepler’s work showed science should be based on this, not guessing.
observation and evidence
He studied the orbits of planets while working in this capital city. (hint: Vienna’s country)
Prague
Together, his three laws explain how planets move, also called this. (hint: starts with “o”)
orbital motion
He improved understanding of this planet’s motion, which confused earlier astronomers
Mars
He used his math skills to predict these space events. (hint: when planets line up)
planetary conjunctions
He faced many family and money troubles but stayed focused on
astronomy
Kepler’s laws replaced this earlier idea that planets moved in perfect circles
geocentric/circular model
His work helped this later scientist explain gravity. (hint: apple-tree guy)
Newton
He died in 1630, but his laws are still used to study this today. (hint: planets)
solar system