4 Written questions
3 Multiple choice questions
- Look at page 366 in book. Seven steps in conducting an investigation to solve a problem.
- The force that pulls objects toward each other.
- Polish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543)
3 True/False questions
Johannes Kepler → Determined that planets move in elliptical orbits
Ptolemy → The force that pulls objects toward each other.
Isaac Newton - Mathematical Principles of Natural Philosophy → Explains the Law of Gravity and other workings of the universe.