April 12, Week # 12 NB-141 Learning Target: I will Homework: Agenda: Discuss the major components of the solar system Homework: CST Review Handout 3 Study for practice CST Essential Question: What else is in our solar system besides planets and stars? Agenda: Turn in hw: CST Review #15-35 Astronomy PowerPoint Grade HW CST Review, NB-140 Organize notebook

2. The galaxy that Earth is in is called the a. Big Dipper b 2. The galaxy that Earth is in is called the a. Big Dipper b. universe c. milky way d. planetary zone c. milky way

7. From what materials did the solar system form. a. Dust and ice b 7. From what materials did the solar system form? a. Dust and ice b. gas and dust c. magama and gas d. heat and light b. gas and dust

13. Earth’s only natural satellite is? a. The sun b. The solar system c. earth d. the moon

a. much farther from the Earth than the planets 16. The planets and stars we see in the night sky all look like tiny points of light. However, the stars are a. much farther from the Earth than the planets b. much closer to Earth than the planets c. just outside our solar system, whereas planets are inside d. moving in and out of the solar system over time a. much farther from the Earth than the planets

Our favorite Solar System

A solar system is a star and everything that orbits the star

Our sun is not the only star with planets: 146 planetary systems Upsilon Andromeda- very similar to ours 3 planets PSR B1620-26- solar system with two stars 1 planet

1 AU = the distance from the Earth to the Sun . Solar systems are small in space terms so they are measured using astronomical units 1 AU = the distance from the Earth to the Sun

Examples of using AU

Everything in the solar system is much smaller than the sun

The first 4 planets Terrestrial planets

Terrestrial planets are small compared to gas planets

Terrestrial planets are made of rock

Moons Planet Number of moons Names Mercury Venus Earth 1 moon Mars 2 Venus Earth 1 moon Mars 2 Phobos, Deimos

Outer planets Sometimes called gas giants

Rings Terrestrial planets have no rings Though Saturn is famous for its rings all gas planets have them. Neptune Uranus

Moons Planet Names Number of Moons Jupiter 62 Saturn 33 Uranus 27 Io, Europa, Ganymede, Callisto, Amalthea, Himalia, Elara, Pasiphae, Sinope, Lysithea, Carme, Ananke, Leda, Metis, Adrastea, Thebe, Callirrhoe, Themisto, Kalyke, Iocaste, Erinome, Harpalyke, Isonoe, Praxidike, Megaclite, Taygete, Chaldene, Autonoe, Thyone, Hermippe, Eurydome, Sponde, Pasithee, Euanthe, Kale, Orthosie, Euporie, Aitne, plus others yet to receive names Saturn 33 Titan, Rhea, Iapetus, Dione, Tethys, Enceladus, Mimas, Hyperion, Prometheus, Pandora, Phoebe, Janus, Epimetheus, Helene, Telesto, Calypso, Atlas, Pan, Ymir, Paaliaq, Siarnaq, Tarvos, Kiviuq, Ijiraq, Thrym, Skadi, Mundilfari, Erriapo, Albiorix, Suttung, plus others yet treceive names Uranus 27 Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon, Caliban, Sycorax, Prospero, Setebos, Stephano, Trinculo, plus others yet to receive names Neptune 13 Triton, Nereid, Naiad, Thalassa, Despina, Galatea, Larissa, Proteus, plus others to receive names

Asteroids are giant rocks orbiting the sun They range in size from about the size of a classroom to the largest which is 580 miles long

Asteroids Most asteroids are in the Asteroid belt between Mars and Jupiter

Comets Comets are made of ice, rock and dust Comets have very elliptical orbits around the sun

Comets Comets have a tail when they are close to the sun because of the melting ice

Main points Solar systems are a star and what orbits around it Solar systems are measured using A.U. In our solar system we have: the sun gas planets terrestrial planets asteroids comets

CST Review NB-140, #1-20 A B C B C D A

CST Review NB-140, #1-20 Correct: Write the number correct on page 4

CST Review NB-140, #21-40 C B A D C A D B

CST Review NB-140, #21-40 Correct: Write the number correct on page 7

CST Review NB-140, #41-60 A B C D A C B D

CST Review NB-140, #41-60 Correct: Write the number correct on page 11

CST Review NB-140, #61-75 B C A D D C B

CST Review NB-140, #61-75 Correct: Write the number correct on page 13

Add up all of the numbers on pages 4, 7, 11 and 13. Correct: CST Review NB-140, #1-75 Add up all of the numbers on pages 4, 7, 11 and 13. Correct: 68-75= A 60-67= B 53-59= C

CST Review #1-15 Answers B C A D D A B

CST Review #16-35 Answers B C D A C B D A

CST Review #36-45 Answers A D C