1. Bell Ringer:
In your notebook, copy and answer the following question:
Why might people have difficulty accepting new ideas or ways of thinking?
Set in their ways
Do not like change
Fear

2. A review…
The Renaissance and Reformation were a period of great change.
The Renaissance was the rebirth of the…
…classics. (Greeks and Romans)
The Reformation was the change in…
…the Catholic Church.
While these two movements were taking place, another movement was also happening that would change how people viewed their physical world.

3. Middle Ages: (people believed that…)
Physical world: Having to do with nature.
Before 1500, scholars decided what was true or false by consulting works of the ancient Greeks or Romans, or the Bible.
Few challenged these ideas.
Middle Ages: (people believed that…)
Earth was immovable and was the center of the universe.
The sun appeared to move around the earth, so they believed that all the planets revolved around the earth.

4. GEOCENTRIC
GEOCENTRIC
GEOCENTRIC
Geo: earth, soil, ground
Centric: centered around
GEOCENTRIC THEORY:
The belief that the earth is the center of the universe.

5. The Renaissance and Reformation, in Europe, opened European minds to new ways of thinking.
In the mid 1500’s, a few scholars published works that challenged the ideas of ancient thinkers.
This led to the…
Scientific Revolution: A new way of thinking about the natural world.

6. Open your books to page Individually, or with a partner, read the section A Revolutionary Model of the Universe. Once you have finished reading, complete the Heliocentric Theory part of the handout.

7. Heliocentric Theory:
The planets orbit around the sun

8. Copernicus Johannes Kepler Galileo Galilee Early 1500’s
Name
Date
Achievement toward understanding the Heliocentric Theory:
Copernicus
Johannes Kepler
Galileo Galilee
Early 1500’s
Studied planetary movements for 25 years. Discovered the planets revolved around the sun.
Early 1600’s
Shows, mathematically, that the planets revolve around the sun in an elliptical shape.
Built the first telescope and used it to study the sky. Wrote a book that showed he supported the Copernicus theory.
1609
Significance to today’s world: The Heliocentric Theory changed the way we understood our world. We were no longer the center, but just a part of the universe.

9. Review:
What great revolution is starting to take place toward the end of the Renaissance and Reformation?
Scientific Revolution
This is the theory that the planets revolve around the earth.
Geocentric Theory
This is what caused people to have a new way they thought about the natural world.
The Scientific Revolution
This is the theory that the planets revolve around the sun.
The Heliocentric Theory