The Struggle for Existence: Competition Between Bacterial Strains
Two strains of Escherichia coli are grown in broth and plated out at intervals. A population growth curve is plotted for each strain. The two strains are then grown together for several days in different types of broth. Students from each day's laboratory plate out the mixed culture on selective media. ...
The Study of Development Using Red Algae
This exercise can be used to demonstrate developmental processes at the cellular level, environmental control of photosynthesis, and cell enlargement by using red algae, which is well-suited for these types of experiments.
Two Reliable and Inexpensive Lysozyme Assays for Teaching Enzymology and Microbiology
This exercise will allow students to actively learn about enzyme assays by performing two types that have relevance to the students interests, radial diffusion assay and spectrophotometry, and by using an enzyme, lysozyme, that is easily understandable and is applicable to their studies outside of this lab.
What's the Big Idea? Archeology
This fun Web article is part of OLogy, where kids can collect virtual trading cards and create projects with them. Here, they learn about archeology Piecing Together the Puzzle of History looks at how archaeologists use clues to assemble a picture of the past. Clues to the Past explains that, like all scientists, archaeologists begin with a question they want to explore. Fieldwork Is Where They Dig In explores the challenges of finding a site to excavate. Evidence of an Era has an overview of th
Ukraine prepares for face-off with Russian in Crimea
Subscribe: http://smarturl.it/reuterssubscribe More Breaking News: http://smarturl.it/BreakingNews Ukraine's national security chief accuses Russia of being behind seizure of Crimea's airports, warns against "direct aggression." Nathan Frandino reports. Reuters tells the world's stories like no one else. As the largest international multimedia news provider, Reuters provides coverage around the globe and across topics including business, financial, national, and international news. For over 16
Conservation and biodiversity
Dr. Richard Field research interests lie in conservation, biodiversity and the forces that structure ecological communities. In this podcast, Dr Field from the School of Geography compares and contrasts his experiences as a researcher in national parks in Honduras and Indonesia, and the different types of ecological communities he has studied, and goes on to introduce the emerging field of conservation bio-geography.
Uniform convergence and pointwise convergence
The aim of this material is to introduce the student to two notions of convergence for sequences of real-valued functions. The notion of pointwise convergence is relatively straightforward, but the notion of uniform convergence is more subtle. Uniform convergence is explained in terms of closed function balls and the new notion of sets absorbing sequences. The differences between the two types of convergence are illustrated with several examples. Some standard facts are also discussed: a unifo
Nichi Bei Times Exclusive! The Tanko Bushi
A Nichi Bei Times Exclusive! Sensei Michiya Hanayagi, demonstrating the famous Japanese American Obon festival dance THE TANKO BUSHI! Only on the Nichi Bei Times. (1:40)
Graduating Student Profile 2012 - Ryan Kleinert
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This short video discusses the two main types of these huge tortoises and show how these animals get water from cacti if there is no water available.
Notes in Spanish Intermediate 3 - Nuestra Casa
Ben and Marina take you on an audio tour of their flat in Madrid, and discuss different types of housing in Spain. See notesinspanish.com for full details, and to obtain a full transcript of our conversation.
The Sport of Fencing
A short video that explains a bit of the history of fencing and shows some combat. It also goes into more detail about the types of weapons and how the winner is chosen. Of some value where fencing is taught as an introduction. Run time 3:27
Precambrian Shields: Discussion of rock types and implications.
Geological exploration team analysing Precambrian rock in Northwest territories, Differences between Archean and Proterozoic rock types, and possible causes. Also, discussed are formation of a variety of ore bodies. From the Planet of Man Series -- Run time 9:51
Dr. Loopy's Blinding you with Science #9: Rocks and Minerals
This is another in the Blinding you with Science series I produced to help elementary students learn science concepts. In this episode Dr. Loopy and his friends use music, comedy and parody to teach students about different types of rocks and minerals. Run time 25:00.
Skateboarding Safety Gear
Important video for those who want to skateboard or are skateboarding. Issues covered include the types of pads and helmet and how to wear them. On average over 40 people die each year skateboarding. Run time 02:59.
Students are introduced to the basics of punctuation through the telling
of Lincoln's life and accomplishments. Students learn the types of
punctuation and when to use them.
Greatest Inventions with Bill Nye: The Science of Materials
Everything around us is made out of some kind of material, and there are many different types--metals, woods, and plastics--and many varieties of each. In the program, Bill Nye shares the history and technology of some of the most common materials we encounter. Many are the building blocks of our homes, buildings, cars, toys, and furniture. Without them, our lives would be significantly different.
The Aerodynamics of Flight
This video (using computer animation) covers the basic aerodynamics that allow for all different types of aircraft to fly. (07:14) The sound is a little low.
How Do Rockets Work
A history of rockets and how they work. Types of fuel and a good explanation of how the rocket works make this a good video considering its 4 minute length.
Imaging: Raster File Types
Video: Imaging: Raster File Types Episode 14 (of a 25-part series). These file types are JPEG, BMP, TIFF, GIF and PNG. They are types of encoded digital images.