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DISCOVERY INQUIRY PRESENTATION By Rochelle Cole. WHY ARE THE SUN AND PLANETS ROUND?

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Presentation on theme: "DISCOVERY INQUIRY PRESENTATION By Rochelle Cole. WHY ARE THE SUN AND PLANETS ROUND?"— Presentation transcript:

1 DISCOVERY INQUIRY PRESENTATION By Rochelle Cole

2 WHY ARE THE SUN AND PLANETS ROUND?

3  Gravity is keeping the planets and stars spherical but mountains and valleys stop the planets from being perfectly spherical.  Large mountains or skyscrapers can only get to a certain point before they get destroyed because they collapse under their own weight because of gravity being so strong the larger the planet gets. The earth is a more oblate spherical shape because the earth spins.  Our solar system was formed from nebula, Nebula is a concentrated area of gases and cosmic dust in the ISM when enough of this gathers it gains a gravitational force.  Because asteroids (or similar like things out in space) are so small they don’t have a gravitational force strong enough to make them spherical like the planets.

4 WHY ARE THE PLANETS CALLED WHAT THEY ARE?

5 PlanetsWhy the planets are called what they are. Mercury Named after the roman god of travel because it appears to move so swiftly Venus Venus the planet that seem the brightest was named after the goddess of beauty Earth Earths name came from old English and Germanic word for ground Mars Mars because of it’s reddish colour was named after the war god because it reminded them of blood Jupiter It is the biggest planet it was named after the most important Greek god Saturn Former roman god of agriculture replaced by his daughter Uranus When it was discovered it was going to be called Georgium sidus but other astronauts called it Herschel but then Johann bode suggested to use a mythological name Uranus to match the five planets called antiquity. Neptune leverrier wanted to name it after himself but Neptune was proposed and used by scientists. Total The planet names were named after Greek and roman mythology. WHY ARE THE PLANETS CALLED WHAT THEY ARE?

6 WHAT’S THE DIFFERENCE BETWEEN A DWARF PLANET AND A PLANET

7  Definition from 2006 means  A planet is celestial body that 1.Is in orbit around the Sun, 2.Has sufficient mass to assume hydrostatic equilibrium (a nearly round shape), and 3.Has "cleared the neighbourhood" around its orbit.  Definition from 2006 means  a dwarf planets is defined as a celestial body 1.Is in orbit around the Sun, 2.Has sufficient mass to assume hydrostatic equilibrium (a nearly round shape) 3.Has not cleared the neighbour around it’s orbit WHAT’S THE DIFFERENCE BETWEEN A DWARF PLANET AND A PLANET Planet Dwarf Planet

8 ARE THERE ANY OTHER SOLAR SYSTEMS IN THE UNIVERSE?

9  None that scientists have found but the reason for this is spotting planets orbiting other stars is like trying to spot a mosquito next to a brilliant search light miles away, Because planets only shine from the reflected light of the star they orbit which isn’t much.

10 WHY IS THE SUN GOING TO EXPLODE

11 The sun will start go out in 5 billion years but a 4-5 million years before that it will turn into a red dwarf which will reach the earth's orbit it will cool down but it will still be way to hot to allow any life to still live on earth

12 WHAT IS EARTH MADE OF ?

13  You have the inner core, then the outer core, after that there’s the mantle and the crust  The earths core is mostly made out of nickel and iron  The earths mantle is made out of rock containing silicon, iron, magnesium, aluminium, oxygen and other minerals.  The earths crust is made out of oxygen, silicon, aluminium, iron, calcium, sodium, potassium and magnesium.

14 RESOURCES http://www.universetoday.com/75835/why-are-planets-round/ http://www.pa.msu.edu/sciencet/ask_st/031198.html http://coolcosmos.ipac.caltech.edu/ask/194-Why-are-all-of-the- planets-round- http://curious.astro.cornell.edu/question.php?number=19 http://wiki.answers.com/Q/Why_are_planets_round#slide1 http://www.ask.com/question/why-are-planets-round http://www.thenakedscientists.com/HTML/questions/question/2798 / http://www.ask.com/question/why-are-planets-round-in-shape

15 http://curious.astro.cornell.edu/question.php?number=372 http://www.factmonster.com/ipka/A0875452.html http://answers.yahoo.com/question/index?qid=20100425025936AAski3I http://rome.mrdonn.org/romangods/planets.html http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question48.html http://www.universetoday.com/34362/names-of-the-planets/ http://planetarynames.wr.usgs.gov/Page/Planets http://www.scholastic.com/teachers/article/planets-0 http://physics.stackexchange.com/questions/26040/what-is-the-official- difference-between-a-planet-and-a-dwarf-planet http://lasp.colorado.edu/education/outerplanets/kbos_dwarfplanets.php http://answers.yahoo.com/question/index?qid=20111014102314AA9Zlue https://solarsystem.nasa.gov/planets/profile.cfm?Object=Dwarf&Display=Mo ons

16 http://wiki.answers.com/Q/What_is_the_difference_between_a_dwarf_plan et_and_a_planet#slide1 http://wiki.answers.com/Q/What_is_the_difference_between_a_dwarf_plan et_and_a_planet#slide1 http://wiki.answers.com/Q/How_are_dwarf_planets_different_from_regular _planets#slide1 http://www.differencebetween.info/difference-between-dwarf-planet-and- planet http://www.space.com/15216-dwarf-planets-facts-solar-system-sdcmp.html http://spaceplace.nasa.gov/review/dr-marc-space/solar-systems-in- galaxy.html http://www.universetoday.com/71957/another-solar-system-like-our-own/

17 http://www.sciencedaily.com/releases/2010/01/100105161540.htm http://scienceline.ucsb.edu/getkey.php?key=3107 http://answers.yahoo.com/question/index?qid=20110308125150AAtjMrE http://www.nhm.ac.uk/nature-online/space/planetary-system/ http://www.bbc.co.uk/schools/events/spaceday/galaxies.shtml http://scienceblogs.com/startswithabang/2012/04/26/so-youve-learned- that-the-sun/ http://scienceline.ucsb.edu/getkey.php?key=71 http://answers.yahoo.com/question/index?qid=20110425164520AAyCJuh http://wiki.answers.com/Q/When_will_our_sun_explode#slide1 http://english.pravda.ru/science/mysteries/10-08-2011/118707-sun_death- 0/ http://curious.astro.cornell.edu/question.php?number=232 http://www.universetoday.com/18847/

18 http://www.dailymail.co.uk/sciencetech/article-436969/One-day-sun-explode-- just-like-this.html http://www.bibliotecapleyades.net/ciencia/ciencia_sol05.htm http://adsabs.harvard.edu/full/1941PA.....49..360Ghttp://www.space.com/177 77-what-is-earth-made-of.html http://coolcosmos.ipac.caltech.edu/ask/58-What-is-Earth-made-of- http://www.universetoday.com/15048/what-is-the-earth-made-of/ http://www.ask.com/question/what-is-earth-made-out-of http://www.nasa.gov/audience/forstudents/k-4/stories/what-is-earth-k4.html http://www.earth.northwestern.edu/people/seth/107/Rocks/compintro.htm http://simple.wikipedia.org/wiki/Earth http://www.ducksters.com/science/composition_of_the_earth.php http://www.bbc.co.uk/schools/gcsebitesize/geography/natural_hazards/tecton ic_plates_rev1.shtml http://www.kidcyber.com.au/topics/earth.htm

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