Earth's history is split into many pieces. This is called the geologic time scale. The geologic time scale is divided into four main parts, the Precambrian, Paleozoic, Mesozoic and Cenozoic. The Mesozoic Era lasted from 245 million years ago till 66 million years ago. The Mesozoic is divided into three parts. The Triassic age from 245 mya (million years ago) till 208 mya, Jurassic age from 208 mya till 144 mya and the Cretaceous age from 144 mya till 66 mya. During the Triassic age dinosaurs, turtles crocodiles and cycads first evolved, along with the rare early mammals. It also included the first bird who's name translates to "Ancient Winged Thing" . The Triassic age also included the breakup of pangea and the separation of the continents. In the Jurassic age giant dinosaurs roamed the land causing the Mesozoic to be nicknamed the age of the reptiles. During this time period the continents had now divided themselves in half to make Laurasia and Gondwanaland. The last and final part of the Mesozoic era was the Cretaceous. During this time period mammals became more common as well as flowering plants like the magnolia. This was also the time of the famous mass extinction that wiped out many species as well as the dinosaurs. The Mesozoic era is part of our Earth's history and a very important one at that.
S&EP: SP3: Planning and carrying out investigations
I planned and carried out an investigation of what life was like in the Mesozoic Era. I investigate what life had evolved and gone extinct during this era. I also investigated the weather and climate as well as major changes such as the mass extinction. There is a lot to learn about the Mesozoic Era and all that lived during it, and all that had happened. The Earth's History is interesting and full of surprises and puzzling events.
XCC: Cause and Effect
Cause and effect is a very important part of our lives and living itself. Many things have happened in our lives, and these were all caused by something. In the Mesozoic era, in the cretaceous time, there was a massive extinction. This is believed to be caused by a massive meteor that hit the earth millions of years ago. This massive extinction was thought to be the effect of the meteor that hit Earth and exploded just off the coast of current day Mexico. Thanks to a meteor, we no longer have to live with Tyrannosaurus Rex's and other dinosaurs. That must have impacted our lives as well.
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