https://padlet.com/1291400191/Science_Project_Period_3 Made by Rennan, John, Chris, Nelson en-us 2021-10-26 21:20:35 UTC 2021-10-29 19:39:52 UTC hello@padlet.com http://www.pngall.com/wp-content/uploads/4/Pickle-PNG-Free-Download.png 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846345125 There are 3 different periods in the Mesozoic era, the Triassic period which was from 245-208 million years ago. The Jurassic period that was 208-144 million years ago. And lastly the Cretaceous period that is 144-66 million years ago ]]> 2021-10-26 21:41:50 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846345125 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846349457 There are many periods in the Palezoic era which contained the Cambrian, Ordoveion, Silurian, Devonian, Carboniferous, and Permian periods.]]> 2021-10-26 21:44:48 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846349457 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846355893 The climate was hot and mostly dry. These conditions mostly ruled the center of the Pangaea (Pangaea is a super-continent, before the process of plate tectonics separated. ]]> 2021-10-26 21:49:22 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846355893 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846416522 North america separates from Africa and South Africa during the Jurassic period. During the Cretaceous period a widespread of volcanic activity occurs.]]> 2021-10-26 22:31:53 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846416522 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846420599 During the Triassic the Pangaea hold together for much of the period. During the Jurassic period North america separates from Africa. During the Cretaceous period the continents start moving to their current positions. Also Africa and South Africa separate.]]> 2021-10-26 22:34:54 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846420599 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846435233 During the Triassic period the age of reptiles begin, Dinosaurs start to appear and mammals that evolve from warm-blooded reptiles appear. Also crocodiles pop up. During the Jurassic period, the largest dinosaurs thrive such as the Stegosaurus, Diplodocus, and the Apatosaurus. The first birds appear. The first flying reptiles, pterosaurs appear. During the cretaceous period, Dinosaurs including the Tyrannosaurs Rex dominated. The first snakes appeared. The mass extinction that caused land and marine life to disappear happened at the end of the period.]]> 2021-10-26 22:45:29 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846435233 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846438204 During the Triassic period conifers, palm-like trees, and ginkgo trees dominated the forest. During the cretaceous period, the first flowering plants appeared.]]> 2021-10-26 22:47:27 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846438204 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1846441868 -The Editors of Encyclopedia Britannica (2021) "Pangea Ancient super-continent" October 26, 2021 https://www.britannica.com/place/Pangea

]]> 2021-10-26 22:50:23 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1846441868 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852122345 During this era, The climate was warm. It was warmer than usual at 20 Celsius (68 Fahrenheit). Wet lands began to grow dry and trees grew on land.]]> 2021-10-28 18:10:05 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852122345 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852138014 Mountains formed when the first early continents collided with each other. The sea levels rose up and fell over current north america. The super continent Pangaea forms as all early continents join together.]]> 2021-10-28 18:17:40 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852138014 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852164808 In the early stages of the Paleozoic era, the early continents were slightly spread apart with north america in the middle of the equator. Nearing the end of the era, the super continent pangaea started to form as the early continents start to colide with each other.]]> 2021-10-28 18:30:49 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852164808 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852167774 There are 3 periods in the Precombrian period, first there was the Haden period which was abour 4600 to 4000 million years ago. Next there was the Archean period which was from 4000 to 2500 million years ago. Lastly there was the Proterozoic period which was 2500 to 542 million years ago.]]> 2021-10-28 18:32:12 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852167774 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852173675 Climate during the Haden period was it was very hot and there were a lot of toxic gases. During the Proterozoic period was cold and glaicers started to form.]]> 2021-10-28 18:35:11 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852173675 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852174501 During the Precambrian period Earth begins to form, Oceans cover a vast amount of space. Also the first sediment rocks begin to form]]> 2021-10-28 18:35:36 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852174501 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852176243 At the beginning of the Paleozoic era, There were many sea creatures. That was when fishes were developing over time such as them obtaining jaws or getting bigger which lead to the shark. nearing the end of the Paleozoic era, The first reptiles and insects appeared and the reptiles became dominant on land. But then, a mass extinction took out many marine invertebrates, including trilobites.]]> 2021-10-28 18:36:29 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852176243 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852183706 During the Hadean period the earths crust was not formed. For most of the period, earth was under water. Since Earth was under water that means North America was under water.]]> 2021-10-28 18:40:13 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852183706 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852192812 During the Precambrian era, bacteria appeared about 3.5 billion years ago. Soft bodied multicellular organsm developed in the late Precambrian. Also a mass extinction probably occurs near the end of the era.]]> 2021-10-28 18:44:40 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852192812 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852197249 During the Precambrian era most of earth was under water. Becuase Earth was under water most of the plants were sea plants. One plant is called the Sea Pen.]]> 2021-10-28 18:46:52 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852197249 3141400170 https://padlet.com/1291400191/Science_Project_Period_3/wish/1852200976 -Global Climate (2021) "Precambrian Era" October 28, 2021 https://www.climate-policy-watcher.org/global-climate-2/precambrian-era.html]]> 2021-10-28 18:48:49 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1852200976 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854655489 In the early stages of the Paleozoic era, the plants grew under water. started off as sponges and progressed into psilophytes that later on grew into forests on land that started close to the end of the era.]]> 2021-10-29 19:20:13 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854655489 1291400191 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854659962 -Kheper Site(2002) "The Paleozoic" October 29, 2021 http://palaeos.com/paleozoic/paleozoic.html#:~:text=The%20early%20Paleozoic%20saw%20many,Baltica%20converging%20in%20the%20tropics.]]> 2021-10-29 19:23:37 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854659962 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854661920 There are two periods in this era, the Tertiary period which was 66 million years ago and the Quaternary period which is 1.8 million years to the present.]]> 2021-10-29 19:24:58 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854661920 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854666249 The climate is normally warm and moist, but it became cool and dry. There was also an ice age during the era.]]> 2021-10-29 19:28:07 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854666249 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854670787 The rocky mountains and Himalayas form. Thick glaciers advance and retreat over much of North America and Europe parts.]]> 2021-10-29 19:31:21 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854670787 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854672299 Continents continue to move into present day positions. Continental glaciers cover Antarctica. Continents continued the separation that had begun at the end of the Mesozoic Era.]]> 2021-10-29 19:32:35 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854672299 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854675012 Age of Mammals begin. Modern groups such as horses, elephants, bears, rodents, and primates appear. Mammals and insects dominate the land. Giant mammals go extinct when the Ice Age ends.]]> 2021-10-29 19:33:35 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854675012 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854676101 Flowering plants thrive. First grasses appear. Flowering plants dominate the land. Trees, grasses, shrubs, and other plants dominate many of Earth's biomes.]]> 2021-10-29 19:34:29 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854676101 2861901219 https://padlet.com/1291400191/Science_Project_Period_3/wish/1854677023 Berggren, W. A. (2020, November 16). Cenozoic Era. Encyclopedia Britannica. https://www.britannica.com/science/Cenozoic-Era]]> 2021-10-29 19:35:13 UTC https://padlet.com/1291400191/Science_Project_Period_3/wish/1854677023