Download Name: period: _____ Greatest Discoveries with Bill Nye

Name: _______________________________ period: _____ Greatest Discoveries with Bill Nye: The Origin and Evolution of Life 1. Life is a game of ______________. #1­ KT Asteroid 2. The layer of clay marked what is known in geology as the __________ boundary. 3. Nearly __________ of all life forms on Earth perished in the apocalypse, including _____________. 4. At Meteor Crater AZ, _________ years ago a meteorite about the size of a __________ slammed into the Earth. 5. Alvarez’s theory has been around for about __________ years. #2­ Dinosaurs 6. In __________ a naturalist gave the name Iguanodon to the creature found in a piece of sandstone. 7. “Dinosaur” means ______________ ______________. 8. Yellowstone’s 2 million acres sit atop an enormous underground _____________ over _____ miles wide. #3­ Creating The Potential For Life 9. In __________, Stanley Miller reproduced the conditions on primeval Earth. #4­ Hydrothermal Vents 10. In __________ a deep­sea submarine descended over __________ feet to investigate hydrothermal activity. 11. The temperature around these deep­sea vents was a scorching __________ ºF. 12. This life system is not living off the energy from the Sun, but is living off the energy of the ____________. #5­ Burgess Shale 13. In __________, Charles Walcott came across a piece of shale that was a fossil. 14. The fossils that Walcott discovered were remarkably ______________. 15. The discovery of the Burgess Shale has revealed an estimated ________ different species of ancient marine life. #6­ Classification of Species 16. A botanist, Carl Linneus, came up with a system for classifying every __________ __________. #7­ Natural Selection 17. Charles Darwin quit medical school to become a ______________. 18. The HMS Beagle stayed 36 days in the _____________ Islands. 19. The finches on the Galapagos had different shaped __________. 20. Finally in __________, Darwin published his theory of natural selection. #8­ Australopithecus Afarensis 21. In __________, Donald Johansson, found an ancient hominid in Ethiopia. 22. Lucy was an estimated _________ million years old. #9­ Laetoli Footprints 23. In __________, Mary Leaky, found a pair of fossilized footprints in Tanzania. #10­ Toumai Skull 24. In Central Africa in _________ a research team unearthed 6 skull fragments. 25. Hominids are bipedal and unable to remain _________.