2. By Rosi Barron <--- To Teacher Page

3. Fifth Grade Space: developing the concept of Gravity. Tips: -Teachers, please read through the whole presentation prior to the activity. -Each activity is meant to be used in addition to your classroom teaching. -Each activity includes a journal component. Objective: TSW be introduced to the concepts of Gravity.

4. <--- To Teacher Page What goes up, must come down! Sir Isaac Newton decided that this statement was true. Describe how he made his discovery. 1643-1727

5. November 11, 1572, he wandered out of his workshop and glanced up at the night sky. He saw an extra star in a constellation overhead. Tycho Brahe (1546-1601) Nicholaus Copernicus (1473-1543) Issac Newton (1643-1727) Johannes Kepler (1571- 1630) In 1543, Nicholaus Copernicus came up with the idea that the Sun was at the heart of the Solar System and the planets revolve around it. Nicholaus Copernicus Kepler discovered that the Earth and the other planets in our Solar System travel around the Sun in elliptical orbits. Issac Newton Issac Newton confirmed it to be true. Just as the Moon around the Earth, the planets in our Solar System are held in motion around the Sun by gravity.Moon around the Earth Take a few notes --->

6. Nicholaus Copernicus Tycho Brahe Johannes Kepler Issac Newton Re-arrange the astronomers below in the order in which they made their discoveries. EXTRA: What was the significance of Brahe’s observation? <--- Go back to check your answer.