 | Death Cat dead? or maybe just pretend dead? After death an organism's remains become part of the biogeochemical cycle. Animals may be consumed by a predator or scavenger. Organic material may then be further decomposed by detritivores, organisms which recycle detritus, returning it to the environment for reuse in the food chain. Examples include earthworms, woodlice and dung beetles. Microorganisms also play a vital role, raising the temperature of the decomposing material as they break it down into simpler molecules. Not all material need be decomposed fully however; for example coal is a fossil fuel formed in swamp ecosystems where plant remains were saved by water and mud from oxidization and biodegradation. |
 | The Hydrologic Cycle In this film we survey the campus of Boston University and ask them several questions relating to science. We ask them if they have any knowledge of what the hydrologic cycle is, as well as what an aquifer is. We found that most people had very little knowledge on both subjects. These two topics are very important when understanding science, here is why: Water is the most essential natural resource in life. It takes part in what is known as the hydrologic cycle. In this cycle, water molecules take on several different paths throughout the environment. The hydrologtic cycle is also key in other biogeochemical cycles. Without water there would be no life. Next, we have aquifers. An aquifer is a spongelike region of rock and soil that holds groundwater. The upperlimit of an aquifer is referred to as the water table. Aquifers may hold groundwater for long periods of time, thus making the water quite ancient. The largest known aquifer in North America is known as the Oglalla Aquifer. This region creates a rich agricultural area that is highly useful in irrigating crops. We thank you for watching our film, enjoy. - John MacKinnon, Drew Popper, Pat Gent |
 | The Hydrologic Cycle In this film, we travel throughout the campus of Boston University asking various people a few questions about science. We ask them if they know anything about the hydrologic cycle as well as if they know what an aquifer is. We found out that barely anyone knew the proper information. The hydrologic cycle simply summarizes the many routes that water molecules take as they move through the environment. It plays a huge role in other biogeochemical cycles, mainly due to the fact that water is the most essential natural resource in life. An aquifer is a spongelike region of rock and soil that holds groundwater. The upperlimit is known as the water table. Aquifers hold groundwater for long periods of time, thus making some water ancient. The largest aquifer in North America is known as the Oglalla Aquifer. This aquifer creates a rich agricultural area that is very useful in irrigating crops. We thank you for your interest in the film, enjoy. - John MacKinnon, Drew Popper, Pat Gent |
 | Allaire Report - BS.3.1c The third of a four-part podcast covering Standard/Benchmark 3.1 for Mr. Allaire's Biology Class at Kalani High School. This podcast covers an introduction to biogeochemical cycles, energy flow, trophic levels, and the Water Cycle. |
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