1. The Original Science

2. In your science journal explain the concepts of a year, a month and a day. For each concept, illustrate the motion of Earth and the moon. Write a caption to describe each illustration.

3. Astronomy Objectives Identify units of a calendar
Describe two early ideas about the structure of the universe
Describe the contributions of Brahe, Kepler, Galileo, & Newton to modern astronomy
Astronomy

4. Terms
Astronomy
Year
Month
Day

5. How would you tell the time or know what day it is without clocks & modern calendars?

6. People used seasonal cycles of the stars, planets & moon.
How would you tell the time or know what day it is without clocks & modern calendars?
People used seasonal cycles of the stars, planets & moon.
Example: Farmer

7. Based on the observation of bodies in our solar system.
Year
Months (comes from the word moon)
Day
Use your textbook to write the definitions of each term.
Page

8. Claudius Ptolemy
Ptolemaic Theory: An earth- centered universe.

9. Nicolaus Copernicus
Copernican Theory: A sun- centered universe.

10. Johannes Kepler-Danish (Assistant of Brache)
Tycho Brahe- Danish
Recorded precise observations of the planets & stars.
Johannes Kepler-Danish (Assistant of Brache)
3 laws of planetary motion
Planets revolve around the sun in elliptical orbits

11. Galileo Galilei Isaac Newton-British Law of Gravity
First to use a telescope to observe objects in space.
Discoveries showed planets are not “wandering stars”
Isaac Newton-British
Law of Gravity
Explained why all the planets orbit the most massive object in the solar system

12. Units of the modern calendar
Ptolemaic Theory
Copernican Theory

13. Quiz: Complete this formative assessment
Submit into your period In- Box.