PPT-Fossils can tell us about our biological (life) past…

Fossils can tell us about our biological life past Wed have to build stronger refrigerators FOSSILS can tell us about our B IOLOGICAL PAST How can fossils help tell us Earths GEOLOGIC. Material for this chapter are mainly from the following articles. Implications for Neurodevelopment. . Clyde Hertzman, MD. Human Early Learning Partnership. University of British Columbia, Vancouver. Gradient in all Cause Mortality: . . UK Whitehall Study. CHD Mortality - UK Whitehall Study. Unit 6: Seventh Grade. Theory vs. Law. An idea that has . not. been proven to be unequivocally true. Examples:. Big Bang. The extinction of the dinosaurs. An idea or truth that . has . been proven to be unequivocally true. 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.. WHAT IS A FOSSIL?. WHAT IS A FOSSIL?. WHAT IS A FOSSIL?. WHAT IS A FOSSIL?. TRACE . or. REMAINS of something that lived LONG AGO!. That exposes us to Earth’s BIOLOGICAL (_ _ _ _) PAST.. That . exposes us to Earth’s BIOLOGICAL (. INDEX . FOSSILS . (brief, but widespread). HOW . MUCH PLATES HAVE . MOVED ALL OVER. . . . show how Earth went from . Pangeae. to how it is today in only 230 million years. 71 million years ago, India was down in the southern hemisphere.. . Palaeontology. Palaeontology is . the . branch of science concerned . with. . fossil. Palaeontology is . the.  study of fossils as a . way of getting. . information. . about: . the history. Molds and Casts. Carbon Films. Preserved Remains. Trace Fossils. Petrified Fossils - . How do they form?. Mineral rich water soaks into cracks and crevices. Minerals “precipitate” and fill the spaces. 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.. Evolution. A Swedish botanist in the 1700’s who developed a classification system for the organisms known at this time . Carolus Linnaeus. A group of organisms so similar to one another that they can reproduce and have fertile offspring. Geologic Time and Evolution Earth Has a History Geologic materials record enormous changes. Earth is a complex, evolving system. Physical and biological systems continuously interact. Earth constantly changes and has done so through time. 1. Artist’s Conception of Earth 3 billion years ago. 2. 3. I. . . Concept 25.1: The Origin of Life. A. Introduction. 1. Conditions at this time on Earth were such that life could have arisen by . CAPS: structured, clear, practical. Helping teachers unlock the power of NCS. KNOWLEDGE AREA: . Diversity, change and continuity. Topic 12: . History of life on . Earth. Life’s History: Change throughout the history of life on Earth. How is the age of the Earth determined?. Vocabulary. Geologic Time Scale Law of Superposition. Eon, Epoch, Era, Period Intrusion. Cenozoic Ice Cores. Mesozoic Relative Age. Paleozoic Absolute Age.