Bell Work: January 5, 2012 TCAP THURSDAY! Choose the correct answer. Defend your answer choice. (why did you choose that answer?)

Notes Set- Up ** Next available page, label Planetary Motion. **Add Planetary Motion to your Table of Contents!

Answer this! What keeps the planets in orbit on a path around the sun? What keeps the planets in orbit on a path around the sun? What keeps the moon orbiting around the Earth? What keeps the moon orbiting around the Earth?

Gravity and Inertia Gravity is a force that pulls the object (planet) toward whatever it is orbiting around (sun). Gravity is a force that pulls the object (planet) toward whatever it is orbiting around (sun). Inertia is a force that wants the object to keep in a forward motion in a straight line. Inertia is a force that wants the object to keep in a forward motion in a straight line. Both together, result in an elliptical (oval) orbit path. Both together, result in an elliptical (oval) orbit path.

The Planets We now have only eight planets! We now have only eight planets! My Very Educated Mother Just Served Us Nachos! My Very Educated Mother Just Served Us Nachos! Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune Pluto is now a dwarf planet. Pluto is now a dwarf planet.

Inner Planets vs. Outer Planets More closely spaced More closely spaced Terrestrial planets- small, dense, and rocky Terrestrial planets- small, dense, and rocky Mercury, Venus, Earth, and Mars Mercury, Venus, Earth, and Mars Spaced farther apart Spaced farther apart Gas giants- larger and made mostly of gases Gas giants- larger and made mostly of gases Jupiter, Saturn, Uranus, and Neptune Jupiter, Saturn, Uranus, and Neptune

A Cosmic Contract 100-complete 6 or more activities (3 bonus points for each one over 6) 100-complete 6 or more activities (3 bonus points for each one over 6) 90-complete 5 of the activities 90-complete 5 of the activities 80-complete 4 of the activities 80-complete 4 of the activities Less than 3-you will fail the assignment Less than 3-you will fail the assignment ALL ACTIVITES ARE DUE BY FEBRUARY 2 nd, 2012 ALL ACTIVITES ARE DUE BY FEBRUARY 2 nd, 2012 Contract must be signed by you and your parent Contract must be signed by you and your parent Contract must be returned on Friday, January 6 th Contract must be returned on Friday, January 6 th

Cosmic Contract Activities 1. You have been selected to live in a space station for a year. You are only allowed to bring 5 items with you. List the items you are taking and explain why you chose each one.

Cosmic Contract Activities 2. Read several myths about constellations. Then create a constellation of your own and write a myth to explain it. (You may have to visit the library for this one )

Cosmic Contract Activities 3. Create a poem that describes one of the nine planets. (including Pluto)

Cosmic Contract Activities 4. Construct a model of a space shuttle using a shoebox and other craft objects. On an index card, list its major components and give a brief description of each.

Cosmic Contract Activities 5. Using unlined index cards, design a set of postcards, one for each planet. Label and illustrate a different planet on the front of each postcard; then write 5 facts about the planet on the back of the postcard.

Cosmic Contract Activities 6. Listen to the movie soundtrack of a space related movie, such as Star Wars or Star Trek. As you listen to the music, paint or sketch one or more images that come to mind.

Cosmic Contract Activities 7. Make a collage featuring astronomy- related pictures and illustrations.

Cosmic Contract Activities 8. Make a timeline that shows at least ten important dates in space travel.

Cosmic Contract Activities 9. Write a journal entry that might have been written by an astronaut during a trip to the moon.

Cosmic Contract Activities 10. Research the birth and death of a star. Create a poster that shows the life cycle of a medium sized star such as our sun.

Cosmic Contract Activities 11. Make a chart that describes the composition, atmosphere, and the size of each planet.

Cosmic Contract Activities 12. Research the following famous astronomers: Copernicus, Galileo, and Ptolemy Write a brief paragraph about each one describing his contribution to the science of astronomy.