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NAME:________________________________________________PER.____________________ Intro to the Universe Scavenger Hunt The Universe The sun’s age___________________ Mercury’s Average distance from Sun________________ Venus’s atmosphere___________________ Earth is the only planet known to:_______________________ Moon’s atmosphere ________________________ Mars’s surface temperature____________________ Name the asteroid that comes closest to the Sun at 13.9 million miles ______________________ Any Jupiter fact ___________________ Who was the first person to observe Saturn __________________________ How long does it take Uranus to orbit the sun?_____________________ Neptune is thought to be the ___________________planet in the solar system. When was Pluto downgraded? _________________________ When is Halle Bop visible from Earth next? _______________________________ When were Comet Halley sightings believed to have been recorded?_________________________ How far away is the Helix Nebula? B/T_______________________________ light years. Any Orion Nebula Fact: _____________________________ What is Proxima Centaruri’s Status? ___________________________ What cannot escape a black hole? ____________________________ What is the structure of the Milky Way? _____________________ What is the closest galaxy to the Milky Way?_________________________________ I What is the Big Bang? The _________is a vast expanse of space which contains all of the ________________ and __________________ in existence. The universe contains all of the _______________________, stars, and planets. The exact size of the universe is unknown. Scientists believe the universe is still _____________________________ outward. They believe this outward expansion is the result of a violent, powerful explosion that occurred about 13.7 billion years ago. This explosion is known as the _______________________. ZOOM Solar system tutorial 1.) In our Solar System, which planet is closest to the Sun?_______________________ 2.) Where do the Sun's nuclear reactions occur?__________________ 3.) What is the hottest planet in our Solar System?________________ 4.) Where do most asteroids orbit?_________________________________________ 5.) Which statement applies to the gas giant planets?__________________________ 6.) How many large moons orbit Pluto?____________________________________ 7.) What are comets made of?____________________________________________ 8.) What is a meteorite?_________________________________________________ 9.) What is the Milky Way?______________________________________________ 10.) What did our Solar System form from?__________________________________ Rocky and Gaseous Planets 1.) Which Planets have a Rocky Surface? 2.) Which Planets have a gaseous surface? 3.) Which planets have rings? Planet Size Comparisons Compare the Earth to the Sun, planets, moon, and planetoid then fill in the table with the size ratios Earth is ________________ times smaller than the Sun Earth is _________________ times bigger than Mercury Earth is __________________ times bigger than Venus Earth is _________________ times bigger than the Moon Earth is _________________ times bigger than Mars Earth is _________________ times smaller than Jupiter Earth is __________________ times smaller than Saturn Earth is __________________ times smaller than Uranus Earth is __________________ times smaller than Neptune Earth is __________________ times bigger than Pluto Your Weight on other Worlds What is the weight of a 150 lb person on: Mercury _______________ Venus _______________ Earth _______________ Mars _______________ Jupiter _______________ Saturn ________________ Uranus _______________ Neptune ______________ Pluto ________________ Why is this?