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Prehistory

Prehistory. The Oldest Leaving Things on Earth …. Long ago. Dinosaurs existed long ago. What does it mean“long ago”? Does it mean many years ago? Before your parents were born? No. We are talking about the time when there were only. animals and plants on the land. There

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Prehistory

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  1. Prehistory The Oldest Leaving Things on Earth…

  2. Long ago Dinosaurs existed long ago. What does it mean“long ago”? Does it mean many years ago? Before your parents were born? No. We are talking about the time when there were only animals and plants on the land. There were no people, so the only way we know about the life at that time is that we find the remains of the plants and animals that have not decayed. Dinosaurs were the biggest animals at that time. What does it mean? It means that there were nothing bigger than dinosaurs. Would you like to know more about such animals? Welcome to our lesson!

  3. Dinosaurs Apatosaurus (Brontosaurus) among the largest land animals plant-eater 27 m. long 4,6 m. tall 30-35 tonnes in weight Tyrannosaurus Rex meat-eater 12 m. long 15-20 m. tall 5-7 tones in weight Stegosaurus plant-eaters 2,5 m. tall 6-7 m. long a very tiny brain (70-80 gram.) Compsognathus a bird-like dinosaur meat-eater about the size of a chicken

  4. At the Time of the DinosaursMore dinosaur facts • dinosaurs were on the Earth for more than 100 million years; • dinosaurs were reptiles; • at their time there was only one continent; • birds did not live at the same time as dinosaurs; • there were more than 800 different kinds of dinosaurs; • some dinosaurs were big, some dinosaurs were small; • among dinosaurs there were plant- and meat-eaters.

  5. Dinosaurs’ Records Маменхиозавр – обладатель самой длиной шеи Самый маленький – компсогнат Тиранозавр – король хищников Самый тяжелый – ультразавр Самый крупный птерозавр -кетцалькоатль Самый быстрый – орнитолест

  6. How fast could dinosaurs walkor run?

  7. Why did some dinosaurs grow so big? Paleontologists don’t know for certain, but perhapsa large body size helped to regulate internal bodytemperature, or let them reach new sources of food(treetops as giraffes do today). No modern animals except whales are even close in size to the largestdinosaurs. 1 – a dinosaur 2 – a man 1 1 2

  8. Why did dinosaursdie out?There dozens of theories to explain aprobable cause or causes: • meteorite impact was the partial cause; • extensive release of volcanic gases; • climatic cooling; • sea-level change; • low reproduction rates; • poison gases from a comet; • changes in the Earth’s orbit or magnetic field.

  9. Did your enjoy our lesson? We hope that you have found a lot of interesting! GOOD - BYE

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