Group items tagged

9:30 video Hank & his clone Circus Hank explain the power of epigenetics, which studies the factors that determine how much or whether some genes are expressed in your body.

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Annenberg Learner on content literacy; 10 step interactive website. 1) what is disciplinary literacy 2) Big Ideas 3) Reading 4) Writing 5) Content Specific Big Ideas in Literacy 6) Reading in Content Area (Science) 7) Writing in Sciene 8) Bringing it all together 

Climate change and the human contribution to this change is sometimes denied or depicted as an uncertainty. However, according to the American Association for the Advancement of Science (see References and Further Reading), climate change is not controversial: 97 percent of climate scientists are certain that human-caused climate change is occurring. Climate research is continuing, with scientists and engineers working to predict the consequences of climate change and finding ways to overcome its negative impact.

article with paired images- Convergent evolution is the process by which unrelated or distantly related organisms evolve similar body forms, coloration, organs, and adaptations. Natural selection can result in evolutionary convergence under several different circumstances. Species can converge in sympatry, as in mimicry complexes among insects, especially butterflies (coral snakes and their mimics constitute another well-known example).

Last time we put a Polar Bear in the desert and we still feel bad about that, but there's a lot more going on in ecosystems than just temperature. In fact, there are so many elements in ecosystems, that if just one leaves or gets out of whack, it can be terrible for the whole thing. But today, let's talk about Spider Monkeys.

The next slide displays two versions of the same group presentation. Click the differing elements in either version, then read an explanation of how the improved element contributes to a better presentation.