https://padlet.com/mderail01/sciencechapter2 en-us 2017-10-14 20:44:59 UTC 2025-09-25 04:39:09 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Planets.png mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197060729 - Colossal explosion 
- Forming of galaxies ]]> 2017-10-14 20:48:11 UTC https://padlet.com/mderail01/sciencechapter2/wish/197060729 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197060825 - Earth rotates around the sun
- Third planet from the Sun
- Beyond Neptune's orbit there's a Kuiper belt 
- Billions of icy objects like comets
- Beyond the Kuiper Belt there's the Oort Cloud
- Shaped like a ball that surrounds the entire solar system
- Made of comets]]> 2017-10-14 20:49:41 UTC https://padlet.com/mderail01/sciencechapter2/wish/197060825 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197061119 - 200 billion stars
- group of stars, gas, and dust
- billions of galaxies
- Diameter of the Milky Way is about 130 000 ly]]> 2017-10-14 20:54:42 UTC https://padlet.com/mderail01/sciencechapter2/wish/197061119 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197061551 The Local Group
- held together by a gravitational force
- 50 galaxies 
- 10 million ly]]> 2017-10-14 21:02:04 UTC https://padlet.com/mderail01/sciencechapter2/wish/197061551 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197061621 The Local Supercluster
- One supercluster can contain a billion galaxies
- 100 million ly]]> 2017-10-14 21:03:23 UTC https://padlet.com/mderail01/sciencechapter2/wish/197061621 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062447 Area where temp. allows water]]> 2017-10-14 21:19:29 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062447 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062465 Energy, temperature]]> 2017-10-14 21:19:54 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062465 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062487 Protection against radiation]]> 2017-10-14 21:20:18 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062487 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062499 Gravity]]> 2017-10-14 21:20:29 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062499 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062508 Essential]]> 2017-10-14 21:20:41 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062508 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062523 Solid Surface]]> 2017-10-14 21:21:04 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062523 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062542 1 AU = 150 million km]]> 2017-10-14 21:21:31 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062542 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062555 1 LY= 9460 billion km]]> 2017-10-14 21:21:53 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062555 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062594 2017-10-14 21:22:35 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062594 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062621 -made up of the same characteristics 
-stacked horizontally]]> 2017-10-14 21:23:09 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062621 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062660 Oldest on the bottom
Newest on top
-it has to have been there for there to be a fault ]]> 2017-10-14 21:24:09 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062660 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062750 - formation of the Solar System (800million years ago)
- prokaryotes (one cell+no nucleus)
- bacteria doing photosynthesis
- eukaryotes (one cull+nucleus)
- multicellular organisms (worms)]]> 2017-10-14 21:25:51 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062750 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197062909 - Continents continue drifting
- Hard bodied invertebrates (sponges, arthropods)
- trilobites+ vertebral column
- nautiluses, algae, mosses, lichens
- first mass extinction (too cold)
-jawless fish+ jawed fish
- terrestrial plants+ amphibians
-Second Mass extinction (increased water temp. rise in carbon dioxide and glaciation caused 70% of marine species to disappear)
- conifers+ reptiles+ dimetrodon
-third and largest mass extinction(glaciation, volcanic eruptions and the destruction of the ozone layer. 96%marine species and 75% of land species disappeared)]]> 2017-10-14 21:29:14 UTC https://padlet.com/mderail01/sciencechapter2/wish/197062909 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197065833 -Dinosaurs appear
-fourth mass extinction(meteorite or volcanic eruption causes 50% of fishes, sponges and corals to disappear)
- flowering plants+ small animals
- Pangea divides into two continents (causes major climate changes)
- fifth mass extinction(meteor impact, disappearance of dinosaurs) ]]> 2017-10-14 22:34:28 UTC https://padlet.com/mderail01/sciencechapter2/wish/197065833 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197065931 -Long cooling period and major drought
- mammals thrive
- climate changes (mammals develop rapidly)
- mega fauna
- first humans (20Million yrs. ago)]]> 2017-10-14 22:37:55 UTC https://padlet.com/mderail01/sciencechapter2/wish/197065931 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197066090 -It is the sterilization of liquids  to destroy disease-causing bacteria.
-Louis Pasteur 1860s
-the first organisms had the only purpose of reproducing and doing photosynthesis thus giving out oxygen into the atmosphere]]> 2017-10-14 22:42:13 UTC https://padlet.com/mderail01/sciencechapter2/wish/197066090 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197182584 -believed that God created humankind and other higher organisms and that their insects, frogs, and other small creatures could arise spontaneously in mud or decaying matter. ]]> 2017-10-16 00:27:03 UTC https://padlet.com/mderail01/sciencechapter2/wish/197182584 mderail01 https://padlet.com/mderail01/sciencechapter2/wish/197182768 - he took two flasks with nutrient and made the necks of the flasks into s shapes
- after the broth had been sterilized he broke of one of the swan necks
- with time dust went into the broken flask but could not go into the untouched flask due to gravity
- the broth in the broken flask quickly became a cloudy-a sign that proved that there was microbial life]]> 2017-10-16 00:28:41 UTC https://padlet.com/mderail01/sciencechapter2/wish/197182768