PPT-Fossils

What are fossils FOSSILS are the preserved remains or  traces  of animals plants and other organisms that lived long ago When an organism dies hard parts of the animal bones teeth shells etc can be preserved in rock. Remains . of once living organisms.. Form from decay and are buried by sediment.. Sediment hardens into rock and preserves the shape of the organisms.. Fossils. Fossils . Remains. Molds. . Casts. . The . unweathered. rock that lies below the lowest layer of soil. Depostion. Bedrock. delta. The decayed remains of plants and animals. a. delta. b. soil. c. humus. A large mass of deposited sediments at the mouth of a river. Dr. . Jagdish. . kaur. P.G.G.C.,Sector. 11. , Chandigarh. . . SIMPLY THE CHANGES OVER TIME. EVOLUTION. Human Evolution. The evolutionary timeline is divided into sections of time called eras – which are then divided into smaller units of time called periods.. Fossils can tell us about our biological (life) past…. We’d have to build stronger refrigerators.. FOSSILS can tell us about our. B. IOLOGICAL PAST.. How can fossils help tell us Earth’s . GEOLOGIC. Part II. Types . of Fossils:. Molds. . Casts. Trace fossils. Petrified . fossils. Body. Mold. . fossils. - . a visible empty . space . that was left after an . organism . was . buried in sediment and then . . Fossils are the . preserved remains . or traces of . living. things. Most fossils form when . living. things die and are buried by . sediments. . The . sediments. slowly harden into . rock. Can you name any dinosaurs?. Do you know what they looked like or how they moved?. Scientists have been able to tell us many things about organisms (such as dinosaurs) that lived millions of years ago.. Can you name any dinosaurs?. Do you know what they looked like or how they moved?. Scientists have been able to tell us many things about organisms (such as dinosaurs) that lived millions of years ago.. Fossils have helped determine approximately when life first appeared, when plants and animals arrived on land, and when organisms became extinct.. CONDITIONS NEEDED FOR FOSSIL FORMATION. Whether or not a dead organism becomes a fossil depends upon how well it is protected from scavengers and agents of physical destruction, such as waves and currents.. Fall 2012. Training Presentation. IA. Introduction. Tell Students:. The . Geologic Time Scale . covers Earth’s entire history. It is divided into 4 major time intervals called eons. The eons are not the same length, but are based on major events. SCHEDULE. GROUP . A 12/3/18 . ASHTON CALHOUN. EMMANUEL MARIN. HANNAH REEVES. GROUP B 12/5/18 . CAROLINE GRACE EARLE. ANDREW CALLAWAY. EMMA MYERS. GROUP C 12/10/18 . NOVE MASCI. CAROLINE MARIE EARLE. BSc 4. th. Semester (Open Elective). Fundamentals . of Geology (BOE). OPEN ELECTIVE COURSE (OTHER THAN GEOLOGY MAIN STUDENTS. ). Dr Abdullah Khan. Associate . Professor . Department of Geology. AMU. 8. th. grade. Compare . fossils found in sedimentary rock to determine their relative age. . . http://www.brainpop.com/science/diversityoflife/fossils. /. . Standard for this lesson: . How can we tell what lived when?. ASSISTANT PROFESSOR. Department of Zoology. Nilkantharo. . Shinde. Science and Arts College, . Bhadrawati. Fossils. – . Sir Charles Lyell. Fossil can be defined as . “Any body or traces of body, animal or plant buried and preserved by natural cause”..