Bell Ringer What science class are you taking? Do you like science? Why or why not?

2.1 The Scientific Revolution

Geocentric Theory The sun, moon, and planets revolve around the earth Developed by Aristotle

Scientific Revolution Challenged ancient thinkers and the church Observations and willingness to question accepted beliefs Spread by the printing press

European Explorers Fueled the Scientific Revolution Navigation instruments and geographic measurements to determine location Findings didn’t match up with old beliefs

Heliocentric Theory Sun=center of universe Developed by Nicolaus Copernicus Feared rejection Didn’t publish until the year he died

Johannes Kepler Took Copernicus one step further Planets move in elliptical orbits instead of circular

Galileo Galilei Modifies telescope for astronomy Discoveries: Jupiter has 4 moons Sun has dark spots Moon is rough and uneven Contradicted Aristotle and confirmed Copernicus

An Angry Pope Pope Urban VIII warned Galileo not to defend the ideas of Copernicus Tried at the Vatican Forced to recant Put on house arrest Church admitted he was right in 1992

Scientific Method Logical procedure for gathering and testing ideas Question Hypothesis Experiment Analyze and Interpret Conclusion

Law of Universal Gravitation Sir Isaac Newton Every object in the universe attracts every other object Dependent on mass and distance

Scientific Instruments First Microscope- Zacharias Janssen First mercury barometer-Evangelista Torricelli First mercury thermometer-Gabriel Fahrenheit

New Medicine First ever vaccine is developed by Edward Jenner Used cowpox to develop smallpox vaccine

Chemistry, Ugh! Robert Boyle used the scientific method in chemistry Challenged Aristotle’s idea of the four elements Boyle’s Law: how temp, volume, and pressure of a gas affect each other