Science Bag Online - Biological Science Videos

Making exciting science for over 42 years

"Science, Society and Sustainability: Can We Make the Pieces Fit?"

Tim Ehlinger - Science Bag   Tim Ehlinger
Ecologist Tim Ehlinger looks at our interaction with the land from our first arrival on the continent: trapping, logging, farming, industrialization, urbanization, and suburbia. Through demonstrations he traces human behavior and how it has, and continues, to modify our environment. Meeting our needs without jeopardizing those of future generations is the theme throughout this look at sustainability.

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"Mussel Beach: The Crushing Weight of Invasive Species"

Carmen Aguilar and Russell Cuhel
Quagga mussels seem like invaders from another planet. Are they going to crush the historic wrecked ships on the bottom of Lake Michigan with all their bodies and shells? How did they wipe out the zebra mussels in such a short time? Are they stronger? Learn about the most ravaging invader Lake Michigan has ever seen!

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  Mussel Beach Talk

"Alien Invaders: Exotic Species in the Food Web of the Great Lakes"

Arthur Brooks
Arthur Brooks
Biologist Arthur Brooks in this lecture highlights the interplay of human activity and its impact on the Great Lakes ecosystem over a 200-year period. Utilizing diagrams and high-speed photography, Professor Brooks also discusses the food web of the Great Lakes and gives numerous examples of how exotic species alter the balance within an ecosystem.

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"Digestion: A Tough, Dirty Job, it Takes a Lot of Guts"

Donna Van Wynsbergbe
Zoologist Donna Van Wynseberghe conducts a journey through the unseen workings of a system we utilize day after day and from the first moments of "Digestion: A Tough Dirty Job, It Takes a Lot of Guts," she makes the familiar both fascinating and informative. A viewer will come away with a clearer idea of the digestive process and of nutrition, material that Van Wynsberghe dispenses with wit and lightness.

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  Donna Van Wynsbergbe

"Water, Water Everywhere and Sometimes Ice and Steam"

Arthur Brooks
Arthur Brooks
Arthur Brooks engages the audience in a skillful and fast-paced mix of discussion and demonstration. He begins with a detailed examination of the chemistry of water, using charts, diagrams, and styrofoam models. His demonstrations include a miniature recreation of the Hindenburg explosion, how salt acts on roads in the winter, and many more.

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