Download presentation
Presentation is loading. Please wait.
Published byJuliana Briggs Modified over 9 years ago
2
Pick up a Resiliency and Grit Rubric. READ the descriptions and grade yourself again. It is OK if your score goes down! Answer the questions on the back HONESTLY. If you don’t know your test score – you make check IC quickly! DO NOW!
3
List 3 things that you know about the solar system. List 3 things that you want to know about the solar system. Warm-up
4
How did it form? Basic facts 99.8% of mass 100x diameter of Earth 5,527 o C 92.1% H, 7.8% He Plasma Sun today Sun today Main source of Earth’s energy Our Sun http://www.nasa.gov/images/content/524990main_FAQ10_full.jpg
5
Need to know! Thermal energy Temperature Heat 3 Types of heat 1.Conduction a.Contact Thermal Energy
6
2.Radiation a.EM waves b.How energy gets to Earth 3.Convection a.Movement i.In fluids (liquids, gases, plasma) ii.Material heated (conduction) iii.Rises….why? iv.Sinks….why? v.Repeat
7
1.How are conduction, convection and radiation similar? 2.Give a real-life example of conduction, convection and radiation making an object warmer. (That I didn’t already give you!) Warm-up
9
All types of heating occur in different parts of the Sun 1.Core a.Conduction b.Super dense, hottest layer c.Hydrogen fusion happens here! 2.Radiation Zone a.Radiation of thermal energy b.Energy moves slowly c.Thickest layer Heat and the Sun’s Structure
10
3.Convection Zone a.Convection b.Energy moves more quickly in this layer Heat and the Sun’s Structure
11
4.Photosphere a.Visible surface 5.Chromosphere a.Temp. increases b.Red glow 6.Corona a.Outermost layer b.Hotter than surface c.Only seen during an eclipse Outer Solar Structure
12
Create a model of the sun to help you understand and remember the layers. Remember a model is anything that helps you! (a drawing, saying, diagram, mnemonic device, song…) Sun Structure Model
13
Sunspot Lab
14
What is a magnetic field? What causes a magnetic field? On the Sun? Effect of rotation Different rotation rates Magnetic field lines get wound up Can eventually snap Sun’s Magnetic Field http://www.cbsnews.com/8301-205_162-57597396/
15
Intense magnetic field prevents convection Brightness & temperature Center vs. Edges Sunspots http://oneminuteastronomer.com/1018/sunspots/
17
Solar flares Caused by field snap High energy Explosive Prominence Loops/arches Follow magnetic field lines into space Surface Features
18
Solar Wind Plasma stream Hot, high speed Coronal Mass Ejections (CME)CME Massive eruption Rearrangement of magnetic field lines Effects on Earth Disrupt magnetic field shape Damage electronics Danger to astronauts Solar Wind & CME http://stereo.gsfc.nasa.gov/browse/2013/10/14/index.shtml
19
Interaction of charged particles and magnetic field Strongest at poles Colors Elements Altitude Constantly changing Aurora http://www.public.iastate.edu/~sdk/fick2003/october.html
20
1.Finish the questions on the Sunspot Lab. 2.Turn it into the basket when you are done. You have 10 minutes! Warm-up End
21
Predictable cycle 11-years Minimums Last = 2008/2009 Maximum Last maximum = 2014 Current count: 42 Effects on Earths’ climate Sunspot Cycle
22
Solar MinimumSolar Maximum
23
Mass Definition DOES NOT CHANGE! Units Mass & Gravity & Weight …oh my! Gravity Gravity Definition 9.8 m/s 2 Weight Definition W = m*g
24
Nebula Evidence for formation from one nebula Nearly circular orbits Orbit in same direction Orbits in same plane Planets rotate in same direction (mostly) How does this other stuff form?
25
Too hot for H 2 O, CH 4 to condense Heavier elements Terrestrial planets Asteroid belt Affected by Jupiter Objects may leave What’s happening towards the Sun? http://www.foxnews.com/science/2014/07/24/11-need-to-know-things-about-our-solar-system/
26
Cooler Lighter elements H, He, H 2 Ov Gas giants Kuiper belt Icy chunks Asteroids Pluto Oort cloud Comets Source of Earth’s water? What’s happening at the outer edge? http://www.foxnews.com/science/2014/07/24/11-need-to-know-things-about-our-solar-system/
27
The BIG picture! http://mybroadband.co.za/vb/showthread.php/280231-Positions-of-Asteroid-Kuiper-Belts-amp-Oort-Cloud
28
Astronomical Unit Equals the average distance from the Sun to the Earth 1 AU = 9.3 x 10 7 mi 1 AU = 1.5 x 10 8 km 1 AU = 1.6 x 10 -7 ly Practice! The Moon is 380,000 km away = _____ AU It is HOW big?
29
Distance & Diameter Modeling
30
Create a way to remember the planets. Exit Slip
31
1.If you were on Mercury, would you weigh more, less or the same as on Earth? 2.If you were on Mercury, would you have more, less or the same amount of mass as on Earth? 3.Create your own definitions for planet, dwarf planet, moon, comet and asteroid. Warm-up
32
How do scientists define them? Planet 1.Orbit only a star 2.Round 3.Dominant object in its orbit Dwarf planet 1.Orbit only a star 2.Round 3.Not dominant object in its orbit Tend to be small Rocky and icy http://www.windows2universe.org/our_solar_system/dwarf_planets/dwarf_planets.html
33
Moons 1.Orbit another body (not a star) Asteroid 1.Orbit only a star 2.Irregularly shaped Tend to be small Meteors Meteoroid Meteorite Moons and Asteroids http://en.wikipedia.org/wiki/File:Asteroidsscale.jpg http://starryskies.com/The_sky/events/lunar-2003/planets.moons.jpg
34
1.Orbit only a star Large, very elliptical orbits 2.Ball of frozen gas and dust Coma Comets http://14-billion-years-later.tumblr.com/image/16213560898 http://solarsystem.nasa.gov/planets/profile.cfm?Object=Comets
35
Orbits a star once every 90,465 days Volume is about 1/200 th the size of Earth Large enough to be relatively round in shape Average surface temperature -229 O C ~5.9 billion km from the a star Elliptical and angled orbit Crosses paths with another object A new celestial body has been discovered! How should this body be classified and why?
36
Why is it not a planet? 1.Orbit a star? Yes 2.Round? Yes 3.Dominant object in orbit? NO! NO! What is Pluto? This object is also known as… PLUTO!!!
38
Where do you think the moon came from? Warm-up
39
Former theories Captured by Earth’s gravity Formed when Earth did Collision of small planets Current theory Mar’s-size object collided with early Earth Evidence Similar material to Earth Age – 4.5 billion years Formation of the Moon Theories http://news.nationalgeographic.com/news/2013/13/130710-moon-birth-impact-science-space-cover/
40
Structure Inner core, outer core Solid mantle Crust Gravity Magnetic field Atmosphere Rotation Distance to Earth Reflects sunlight Moon Basics http://en.wikipedia.org/wiki/Internal_structure_of_the_Moon http://www.madpc.co.uk/~peterl/Moon/Craters/Apennines.html
42
Moon phase depends on position of the Moon in relation to the Sun and Earth. What is occurring? What is occurring? New Full Quarter Between phases Gibbous Crescent Waxing vs. waning Waxing vs. waning 27.3 day cyclecycle Moon Faces… no Phases
43
Eclipses Lunar Lunar Why? Which phase?? Solar Solar Why? Which phase? Why don’t they happen all the time!? Earth and its Moon
44
STOP
45
1.How would your mass and weight change if you went to the Moon? 2.What is the current theory on how the Moon was formed? 3.Why do we only see one side of the Moon? 4.Describe how the new moon and full moon are ‘created.’ Warm-up 9/30 & 10/1
46
Tides! Bay of Fundy Bay of Fundy Earth and its Moon
49
Tides! Bay of Fundy Bay of Fundy Big Picture Big Picture Tides vs. Waves High vs. Low 2 tides Where do they occur? Earth and its Moon
50
Liquid water Habitable Zone Habitable Zone What can effect HZ? Star – size and temperature Distance from star Size of planet Structure of planet Presence of atmosphere Other source of heat What is needed for life to exist? http://phl.upr.edu/library/notes/summarylimitsofthenewhabitablezone
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.