Презентация на тему"Путешествие в Мезозойскую эру: причины гибели динозавров"

Муниципальная казённое образование учреждение “Самоцветская средняя образовательная школа” The project work “ Travelling into the Mesozoic Era – the Reasons of Dinosaurs’ Disappearing “ Made by the students of the 6th form Alekseev Daniil and Klimin Maxim.

Dinosaurs existed more than 150 million years. What reason has caused the death of these giants? Have the scientists guessed this riddle? We decided to answer this question. That’s why the topic of our research is called “Why died the dinosaurs out?” The Problem of Research and its Actuality.

We suppose that these giant animals died out because of a sudden global disaster on the Earth. Hypothesis

To learn why the dinosaurs died? The Aim of Our Project

1.To find out who gave the name of the dinosaurs. 2.To find out how the dinosaurs looked like. 3.To learn what the dinosaurs ate. 4.To find the answer to the question why the dinosaurs disappeared. Research Tasks

1.To study books on the subjects of the research; 2.To ask parents and pupils about dinosaurs; 3.To watch films about the ancient giants; 4. To find information in the Internet; Methods of Research

The great era of the dinosaurs began 240 million years ago and lasted for about 175 million years. They lived during the Mesozoic Era, the” Age of Reptiles.” Crocodiles dominated on the land, there were flying pterodactyls and dinosaurs ,of course. In the sea giant reptiles also ruled. The Life of Dinosaurs. The Mesozoic Era.

The Mesozoic Era had three periods: Triassic Jurassic Cretaceous The Mesozoic Era.

Triassic

Jurassic

Cretaceous

Everything that is known about dinosaurs, people learned examining the fossils of plants, animals or their parts – in other words, fossils, which found during Excavation. How did the People Learn about Dinosaurs?

English scientist Richard Owen found a large number of huge bones. Found Animals, skeletons scared him greatly, and he called them «terrible lizards», or dinosaurs. Since then they are called dinosaurs. Who Gave the Name to the Dinosaurs?

Appearance of Dinosaurs Some dinosaurs were of big size, as a whole tennis court, and some are small, like a chicken. Some animals had smooth skin, the others were covered with scales. Many dinosaurs had horns or spikes.

Most of the dinosaurs ate grass. Scientists call them by herbivores. In addition to these peaceful animals there were dinosaurs, eating meat. They are called carnivores. They hunted the herbivores, killed them with their sharp teeth and claws. The Food

Dinosaurs are divided into two basic groups. Ornithischians were dinosaurs that had bird-like hips and other features that you can find in modern birds. Saurischians were dinosaurs that had hips like lizards. Some of them belonged to the largest creatures that ever wandered the Earth. The Main Groups of Dinosaurs

Dinosaurs disappeared very quickly – in just a few million years. There are several hypotheses that explain the different reasons of death of the dinosaurs 65 million years ago. Giants’ Disappearence

We think that our hypotheses are partly right. We are sure that the main reason is a global catastrophe. Conclusion.

Thank you very much!