Students learn about a special branch of engineering called bioremediation, which is …
Students learn about a special branch of engineering called bioremediation, which is the use of living organisms to aid in the clean-up of pollutant spills. Students learn all about bioremediation and see examples of its importance. In the associated activity, students conduct an experiment and see bioremediation in action!
Bacterial conjugation and experiments with viruses indicated that they must also contain …
Bacterial conjugation and experiments with viruses indicated that they must also contain DNA. This multimedia article includes animations, pictures, video, biographical information, and quiz questions that are accessed by clicking on buttons along the bottom of the page.
Without the work of decomposers, living organisms would eventually use up all …
Without the work of decomposers, living organisms would eventually use up all the raw materials in the environment, and dead organisms and wastes would pile up. This video segment from Interactive NOVA: "Earth" describes the role of decomposers in the living world. [3:06]
Students design and conduct experiments to determine what environmental factors favor decomposition …
Students design and conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrots for the materials to be decomposed, and their experiments are carried out in plastic bags filled with dirt. Every few days students remove the carrots from the dirt and weigh them. Depending on the experimental conditions, after a few weeks most of the carrots will have decomposed completely.
This video segment adapted from A Science Odyssey tells the story of …
This video segment adapted from A Science Odyssey tells the story of researcher Sir Alexander Fleming, whose luck and scientific reasoning led to the groundbreaking discovery of penicillin.
This video segment adapted from A Science Odyssey tells the story of …
This video segment adapted from A Science Odyssey tells the story of researcher Sir Alexander Fleming, whose luck and scientific reasoning led to the groundbreaking discovery of penicillin. [4:45]
This lesson describes the major components and functions of the immune system …
This lesson describes the major components and functions of the immune system and the role of engineers in keeping the body healthy (e.g., vaccinations and antibiotics, among other things). This lesson also discusses how an astronaut's immune system is suppressed during spaceflight due to stress and other environmental factors.
Students conduct experiments to determine what environmental factors favor decomposition by soil …
Students conduct experiments to determine what environmental factors favor decomposition by soil microbes. They use chunks of carrots for the materials to be decomposed, and their experiments are carried out in plastic bags filled with dirt. Every few days students remove the carrots from the dirt and weigh them. Depending on the experimental conditions, after a few weeks most of the carrots have decomposed completely.
Bacteria reproduce asexually. This means that, when a bacteria cell splits, both …
Bacteria reproduce asexually. This means that, when a bacteria cell splits, both halves of the split are identical -- they contain exactly the same DNA. The offspring is a clone of the parent.
This pathway provides an overview of recombinant plasmids and how they can …
This pathway provides an overview of recombinant plasmids and how they can be modified to introduce new traits into an organism. This pathway can support ABE Labs 2, 2a, 3, 4 and 4a.
This pathway outlines the process of genetic engineering with a focus on …
This pathway outlines the process of genetic engineering with a focus on gene cloning. This pathway also provides an introduction for the ABE lab series.
Swimmer's Ear is an infection in the outer ear canal. Read about …
Swimmer's Ear is an infection in the outer ear canal. Read about how this infection comes about, how to treat it, and what to expect when you have Swimmer's Ear.
This unit covers the processes of photosynthesis, extinction, biomimicry and bioremediation. In …
This unit covers the processes of photosynthesis, extinction, biomimicry and bioremediation. In the first lesson on photosynthesis, students learn how engineers use the natural process of photosynthesis as an exemplary model of a complex yet efficient process for converting solar energy to chemical energy or distributing water throughout a system. In the next lesson on species extinction, students learn that it is happening at an alarming rate. Students discover that the destruction of habitat is the main reason many species are threatened and how engineers are trying to stop this habitat destruction. The third lesson introduces students to the idea of biomimicry or looking to nature for engineering ideas. And, in the fourth and final lesson, students learn about a specialty branch of engineering called bioremediation the use of living organisms to aid in the clean up of pollutant spills.
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