Slide 1

N. Sassaman 2014 SAMS Slide 2 Use the BrainPOP tile on your Surface start screen and search for the topics below: Slide 3 http://studyjams.scholastic.com/studyjams/jams/science/weather-and-climate/tides.htm Pages 32-33 in textbook Slide 4 - Phases, Eclipses, and Tides Tides occur mainly due to the difference in the force of gravity between the moon and different parts of Earth. http://www.wiley.com/college/strahler/0471480533/animations/ch19_animations/animation3.html ; http://www.onr.navy.mil/focus/ocean/motion/tides1.htm http://www.wiley.com/college/strahler/0471480533/animations/ch19_animations/animation3.html http://www.onr.navy.mil/focus/ocean/motion/tides1.htm Slide 5 - Phases, Eclipses, and Tides When Earth, the sun, and the moon are in a straight line, a spring tide occurs. When the moon is at a right angle to the sun, a neap tide occurs. Site 1: http://oceanservice.noaa.gov/education/kits/tides/media/supp_tide06a.html http://oceanservice.noaa.gov/education/kits/tides/media/supp_tide06a.html Site 2: http://www.valdosta.edu/~cbarnbau/astro_demos/tides/neap_sp.html http://www.valdosta.edu/~cbarnbau/astro_demos/tides/neap_sp.html Full and New moons First and Third quarter Slide 6 1. A New, B Waxing Crescent, C First quarter, D Full, E Waning Gibbous, F Third quarter. 2. A and D Spring Tide; C and F Neap Tide 3. Neap 4. Eclipse 5. Penumbra 6. Tides 7. Umbra 8. Phase 9. Spring 10. Lunar (during a Full moon!!) 11. Solar (during a New moon!!) 12. Gravity Slide 7 The following links are videos: http://www.teachersdomain.org/asset/ess05_vid_totaleclipse/ http://www.teachersdomain.org/asset/ess05_vid_eclipse/ Packet page 10; Textbook pages 27-29 Slide 8 - Phases, Eclipses, and Tides A solar eclipse occurs when the moon passes directly between Earth and the sun, blocking sunlight from parts of Earth. Site 1: http://www.classzone.com/books/earth _science/terc/content/visualizations/es 2505/es2505page01.cfm http://www.classzone.com/books/earth _science/terc/content/visualizations/es 2505/es2505page01.cfm Site 2: http://www.mreclipse.com/Special/SEpr imer.html http://www.mreclipse.com/Special/SEpr imer.html During which PHASE of the moon does a SOLAR eclipse occur?? NEW MOON During which PHASE of the moon does a SOLAR eclipse occur?? NEW MOON Slide 9 - Phases, Eclipses, and Tides During a lunar eclipse, Earth blocks sunlight from reaching the moon. Site 1: http://www.classzone.com/books/earth_sc ience/terc/content/visualizations/es2504/ es2504page01.cfm http://www.classzone.com/books/earth_sc ience/terc/content/visualizations/es2504/ es2504page01.cfm Site 2: http://www.mreclipse.com/Special/LEprime r.html http://www.mreclipse.com/Special/LEprime r.html Site 3: (video) http://www.nasa.gov/mission_pages/LRO/ news/eclipse-video.html http://www.nasa.gov/mission_pages/LRO/ news/eclipse-video.html During which PHASE of the moon does a LUNAR eclipse occur?? FULL MOON During which PHASE of the moon does a LUNAR eclipse occur?? FULL MOON Slide 10 SOLAR LUNAR UMBRA darkest part of the moons or Earths shadow = TOTAL ECLIPSE PENUMBRA lighter part of the moons or Earths shadow = PARTIAL ECLIPSE Slide 11 - Phases, Eclipses, and Tides The moons orbit is tilted about 5 degrees relative to Earths orbit around the sun. That is why we DO NOT have an eclipse EVERY full moon or new moon!! Slide 12 http://www.history.com/shows/the-universe/videos/phases-of-the-moon#phases-of-the-moon Pages 24-27 in textbook Slide 13 - Phases, Eclipses, and Tides The changing relative positions of the moon, Earth, and sun cause the phases of the moon, eclipses, and tides. Slide 14 - Phases, Eclipses, and Tides The phase of moon you see depends on how much of the sunlit side of the moon faces Earth. SUNLIGHT NEW WAXING CRESCENT WANNING CRESCENT WAXING GIBBOUS WANNING GIBBOUS FIRST QUARTER LAST QUARTER FULL What we see from Earth HALF of the moon is ALWAYS lit by the sun!! Slide 15 - Phases, Eclipses, and Tides The phase of moon you see depends on how much of the sunlit side of the moon faces Earth. Slide 16 Waxing growing in size Waning shrinking in size Gibbous more than half but less than full Crescent curved shape ending in points Full entire sunlit side faces Earth New sunlit side faces away from Earth Quarter half the sunlight side faces Earth Slide 17 Slide 18 A. Waxing crescent B. Full moon C. Third (last) quarter D. Waning crescent E. First quarter F. Waning gibbous G. Waxing gibbous H. New moon Slide 19 The Moons Phases: http://www.sumanasinc.com/webcontent/ani mations/content/moonphase.html http://www.sumanasinc.com/webcontent/ani mations/content/moonphase.html Eclipses and Moon phases: http://phschool.com/atschool/phsciexp/active_ art/moon_phases_and_eclipses/index.html http://phschool.com/atschool/phsciexp/active_ art/moon_phases_and_eclipses/index.html Visualization from Earth and Space: http://www.classzone.com/books/earth_science /terc/content/visualizations/es2503/es2503pag e01.cfm http://www.classzone.com/books/earth_science /terc/content/visualizations/es2503/es2503pag e01.cfm Current Moon phase: http://www.die.net/moon http://www.die.net/moon Wonderville Phases of the Moon: http://www.wonderville.ca/asset/phases- of-the-moon http://www.wonderville.ca/asset/phases- of-the-moon Slide 20 p. 53 in textbook and p. 5-6 in packet (summary) Slide 21 The strength of the force of gravity between two objects depends on two factors: the masses of the objects and the distance between them. - Gravity and Motion Slide 22 Newton concluded that two factorsgravity and inertia combine to keep the moon in orbit around Earth. - Gravity and Motion Slide 23 What is gravity? Gravity is the force that attracts all objects toward one another. What is inertia? Inertia is the tendency of an object to resist a change in motion. Question Answer - Gravity and Motion Slide 24 BrainPOP Gravity BrainPOP Newtons laws of motion Why doesnt the moon fall down? http://www.teachersdomain.org/asset/ess05_vid_moonorbit/ http://www.teachersdomain.org/asset/ess05_vid_moonorbit/ Gravity at Earths center: http://www.teachersdomain.org/asset/oer08_vid_gravitynsn/ http://www.teachersdomain.org/asset/oer08_vid_gravitynsn/ Use the BrainPOP app on Surface Slide 25 Gravitational force between planets: http://www.science- animations.com/support-files/gravitasieplaneteb.swf http://www.science- animations.com/support-files/gravitasieplaneteb.swf Earth-Moon system: http://www.science-animations.com/support- files/06aardemaan1.swf http://www.science-animations.com/support- files/06aardemaan1.swf Sun-Earth-Moon system: http://www.science-animations.com/support- files/07aardemaanson.swf http://www.science-animations.com/support- files/07aardemaanson.swf Your weight on other planets! http://www.exploratorium.edu/ronh/weight/http://www.exploratorium.edu/ronh/weight/ Slide 26 1. The force of gravity on an object is known as its weight. 2. All objects in the universe are attracted to all other objects. The Earth and Moon are large objects and therefore have a large gravitational pull. 3. Once the ball is set into motion, it will continue to move at same speed and directions unless acted upon by an outside force (friction). 4. The greater the distance between objects the less the force of gravity. Slide 27 5. A push or pull. 6. Force that attracts all objects to each other. 7. Every object in the universe attracts every other object. 8. The amount of matter in an object. 9. The force of gravity on an object (combined with the objects mass). 10. The tendency of an object to resist a change in motion. 11. An object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force. Slide 28 p. 14-21 in textbook Slide 29 Use the following PowerPoint, along with your textbook, to take notes on p. 1 (Rotation vs. Revolution) and p. 3 (Seasons) of your packet. The PowerPoint contains many links to informational websites. Some of these have sound (like BrainPOP) and some are simply animations. Please investigate the websites fully as you take notes. Slide 30 Earth moves through space in two major ways: rotation and revolution. (p. 15) - Earth in Space Slide 31 Earths spinning on its axis. Axis imaginary line that passes through Earths center and the N and S poles. One rotation is just under 24 hrs. Rotation causes day and night on Earth. Slide 32 The movement of one object around another. Orbit the Earths path as it revolves around the Sun. One revolution is 365.25 days. Earth revolving around the Sun causes seasons. Site 1: http://www.ictgames.com/dayNight/index.html http://www.ictgames.com/dayNight/index.html Video 1: https://www.youtube.com/watch?v=k-oLJxjCzBg https://www.youtube.com/watch?v=k-oLJxjCzBg Slide 33 Near the equator, sunlight strikes Earths surface more directly and is less spread out than near the poles. (p. 18) - Earth in Space North Pole Arctic Circle Tropic of Cancer Equator Tropic of Capricorn Antarctic Circle South Pole Slide 34 Earth has seasons because it is tilted on its axis as it revolves around the sun. (p. 19-21) - Earth in Space Site 1: http://esminfo.prenhall.com /science/geoanimations/ani mations/01_EarthSun_E2.ht ml Site 2: (sound) http://www.teachersdomain. org/asset/ess05_int_seasons game/ Site 3: (sound) http://www.brainpop.com/sc ience/earthsystem/solsticea ndequinox/ Username: password: 17870 seals Site 4: http://www.teachersdomain. org/asset/ess05_int_seawifs / Slide 35 The height of the sun above the horizon varies with the season. http://www.learner.org/jnorth/tm/mclass/eclipticsimulator.swf http://www.learner.org/jnorth/tm/mclass/eclipticsimulator.swf - Earth in Space Slide 36 Please complete p. 4 in your packet Earth in Space as a review of this material. Thanks!! On the following pages are a review of the notes from p. 3 and answer key to p. 4 Slide 37 Caused by: The TILT of the Earth The REVOLUTION of the Earth around the Sun. When it is one season in the Northern Hemisphere, it is the opposite season in the Southern Hemisphere. Summer Winter Fall - Spring Slide 38 The Northern Hemisphere is tilted TOWARD the Sun; Southern Hemisphere is tilted AWAY (winter for them!!) The Suns rays are directly over the Tropic of Cancer (23.5N latitude). Longer days and shorter nights for us in N. Hemisphere Artic Circle (North pole) has 24 hrs. of daylight; Antarctic Circle (South pole) has 24 hrs. of darkness. Slide 39 The Northern Hemisphere is tilted AWAY from the Sun; Southern Hemisphere is tilted TOWARD (summer for them!!). The Suns rays are directly over the Tropic of Capricorn (23.5S latitude). Shorter days and longer nights for us in N. Hemisphere Artic Circle (North pole) has 24 hrs. of darkness; Antarctic Circle (South pole) has 24 hrs. of daylight. Slide 40 Equinox mean equal night Both N. and S. Hemispheres receive same amount of the Suns energy! (neutral tilt of Earth in relation to Sun) The Suns rays are directly over the Equator (0 latitude) There are 12 hrs. of daylight and 12 hrs. of darkness in both Hemispheres. Slide 41 1. Winter 2. A overhead; B low in sky (horizon); C no Sun (dark) 3. Sunset Earth rotates counterclockwise 1. d 2. c 3. g 4. f 5. a 6. b 7. h 8. e