Macy Blum's Blog - Science II

  1. What did you do in lab today? Why do we have earthquakes & volcanoes not on boundaries? Ancient fault lines At one point Iowa was at the edge of the continent, could've been a fault line Fracking drilling of natural gas and oil  this could have an effect of an earthquake due to stress Convection Currents  Surface currents carry warmer, less dense water from the equator to the poles water from deep currents rise to replace water, leaving in surface currents warm water from surface currents replaces colder, denser water that sinks to the ocean floor coldest water: the poles Warmest water: equator arctic waters come down to equator, heat up, then goes back up Alfred Wegener Because the earth was spinning the continents were moving --> this is what he based it on  not strong enough to bring continents together or apart (was laughed at) Layers of the Earth Crust: outer layer of earth Mantle: convection is happening Core: inner most part of Earth --> very ho...

  1. What did you do in lab today? Was not in lab today due to sickness, but looked ICON presentation Two types of waves associated with Earthquales:  P-Waves: can travel through anything S-Waves: Can only travel through liquids S-Waves are Ocean-like P-Waves are slinky-like Types of Volcanoes 1. Composite: can often explode out of their sides - Mount St. Helens Eruption 2. Cinder Cone: Often explode out of the top; the most thought-of example of a volcano - Wizard Island in Oregon  3. Shield: slow flow with huge, sloping sides - Mauna Loa, Hawaii 2. What was the big question?  How do Earth's internal and surface processes shape the planet over time? 3. What did you learn in Thursday's discussion?  Notes: Oldest to youngest layers of the ground, bottom = oldest --> top = youngest White sandstone, siltstone, igneous batholith or limestone, shale, Igneous Dike A, Sandstone A, Conglomerate, Dolostone, Igneous Dike B, Sandstone B, Glacial Debris, surface Earthqua...

  1. What did you do in lab today?   Sand Lab 1: Looks like little rocks, maybe from river 2: more red-ish, maybe from the desert 3: black, looks like rasins, maybe from river 4: white, looks beachy, crystal like, maybe from beach 5: looks crystal, colorful, maybe from cove or cave 6: yellow-ish, small pebbles, from beach maybe or river 7: brown, red-ish, small, from river/jungle 8: Looks same as 7, small, neutral colors, maybe from river or desert 9: looks like coal, black/gray, looks like from volcano (black sand beach) 10: yellow, orange-ish, from desert? maybe a river, bigger pebbles --> abu dhabi  11: little white rocks, looks like little eggs, maybe from desert Fossils Lab Brachiopods - 3 Corals - 5 Most looks like just rocks  we found a lot of coral and big looks rocks/fossils Coral Fossils 2. What was the big question?  How does the discovery of fossils that are millions of years old help us now, in the present? 3. What did you learn in Thursday's dis...

1. What did you do in lab today?   How do we teach? How do we assess? Wasn't in majority of lab due to School of the Wild but looked at presentation on ICON Sedimentary: cemented and compacted together Igenous: Melted and then cooled Metamorphic: Heat (not enough to melt) and pressure 2. What was the big question?  How do rocks tell the story of Earth and its changing surface? 3. What did you learn in Thursday's discussion?  Notes: Magma provides heat  Metamorphic --> pressure + heat (not enough to melt) Pressure comes from pushing down above  Meta means --> big  Morph means --> change  igneous --> born from fire  sedimentary --> sediments magma is liquid rock when cooled it becomes a igneous rock  Coke and Dr pepper: liquid in can is more dense then the water so it sinks  Diet: would float  Archimedes Principle 4. Read online textbook, chapter 7: - What did you learn?   Intrusive vs extrusive ingenous rocks: Int...

   1. What did you do in lab today?   Quiz Review Topics  Shadows If the sun is ______ and I'm at ______ where is my shadow pointing? Moon Phases new moon = no moon  full moon = all moon waxing quarter waning quarter Solstice, equinox  Equinox = equator  Solstice = winter vs summer  summer solstice = sun at cancer winter solstice = sun at capricorn Tropic Lines: Cancer (N), Equator, Capricorn (S) Lifecycle of Stars, Galaxies, Meteor "lifecycle" 3 types of galaxies: Spiral, irregular, elliptical (milky way is spiral)  Andromeda is the galaxy we might collide with stars start as a nebula, then explodes to star, can turn into a nebula or a black hole when a meteor enters earth's atmosphere it becomes a meteorite  Earth Science  Big Bang: 13.7 b.y.a Earth: 4.65 b.y.a EarthView BioInteractive 2. What was the big question?  What is the history of the Earth and how does that affect us today? 3. What did you learn in Thursday's discuss...