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August 13, 2014 Professional Development (Buy Back) Day Course ID/Name/Resources/Presenter(s) Course ID Course Title Resource Link Presenter(s) T800 Keynote Dr Vodicka presentation Supporting Students in Close Reading Fundamentals of Learning Text Selecting Tool Devin Vodicka M...

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Official Homepage for Science. Watch Full Episodes FREE with your TV subscription. Get Behind the Scenes with Your Favorite Shows! Start Exploring Now!

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Evolution: Natural and Artificial Selection

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ExploreLearning : Get hands-on, minds-on in math and science

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Evolution: Natural and Artificial Selection Gizmo : ExploreLearning

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Observe evolution in a fictional population of bugs. Set the background to any color, and see natural selection taking place. Compare the processes of natural and artificial selection. Manipulate the mutation rate, and determine how mutation rate affects adaptation and evolution.

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ExploreLearning : Get hands-on, minds-on in math and science

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Select an inquiry type above for suggestions

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ExploreLearning Gizmos: Math & Science Simulations

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Select an inquiry type above for suggestions Please provide as much of the following information as possible: Name of Gizmo Detailed description of issue Device being used Username Browser being used Location: Home, or school Please provide as much information as possible in your request.

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Copy of Darwin Ornithological Notes pg 261 copy

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Galapagos Finch Evolution — HHMI BioInteractive Video

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mong the many strange mantras repeated by climate change deniers is the claim that even in an overheated, climate-altered planet, animals and plants will still survive by adapting to global warming. Corals, trees, birds, mammals and butterflies are already changing to the routine reality of global warming, it is argued.

Certainly, countless species have adapted to past climate fluctuations. However, their rate of change turns out to be painfully slow, according to a study by Professor John Wiens of the University of Arizona. Using data from 540 living species, including amphibians, reptiles, birds and mammals, Wiens and colleagues compared their rates of evolution with the rates of climate change projected for the end of this century. The results, published online in the journal Ecology Letters, show that most land animals will not be able to evolve quickly enough to adapt to the dramatically warmer climate expected by 2100. Many species face extinction, as a result.

"We found that, on average, species usually adapt to different climatic conditions at a rate of only by about 1C per million years," Wiens explained. "But if global temperatures are going to rise by about four degrees over the next 100 years as predicted by the Intergovernmental Panel on Climate Change, that is where you get a huge difference in rates. What that suggests overall is that simply evolving to match these conditions may not be an option for many species."

The study indicates there is simply not enough time for species to change their morphologies - for example, by altering their bodies' shapes so they hold less heat - to compensate for rising heat levels. Too many generations of evolutionary change are required. Nor is moving habitat an option for many creatures. "Consider a species living on the top of a mountain," says Wiens. "If it gets too warm or dry up there, they can't go anywhere."

The crucial point of the study is that it stresses a fact that is often conveniently ignored by climate change deniers. It is not just the dramatic nature of the changes that lie ahead - melting icecaps, rising sea levels and soaring temperatures - but the extraordinary speed at which they are occurring. Past transformations that saw planetary temperatures soar took millions of years to occur. The one we are creating will take only a few generations to take place. Either evolution speeds up 10,000-fold, which is an unlikely occurrence, or there will be widespread extinctions.

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Climate change is happening too quickly for species to adapt

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mong the many strange mantras repeated by climate change deniers is the claim that even in an overheated, climate-altered planet, animals and plants will still survive by adapting to global warming. Corals, trees, birds, mammals and butterflies are already changing to the routine reality of global warming, it is argued.

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Video explaning the Milankovitch cycles in a simple way Song: Ball and Biscuit by the White Stripes I do not own or claim to own the music or images. http://en.wikipedia.org/wiki/File:Gyroscope_precession.gif

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This video describes the characteristics of ice ages during the last billion years. We discuss why ice ages happened and how and why climate varies in short-term climate cycles during ice ages. We introduce the term "albedo" and use it to consider how the climate system is affected by feedbacks that can either increase or reduce the volume of glacial ice.

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All About Glaciers for Kids: How Glaciers Form and Erode to Create Landforms - FreeSchool

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Kepler’s First Law of Motion - Elliptical Orbits  (Astronomy)

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Weather Versus Climate Change | Cosmos: A Spacetime Odyssey

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Here is the Rock Strata
Video