Data Investigations: Codemaking and Codebreaking
There are resources for two activities 1. Cryptograms: These puzzles are familiar sayings that have been encrypted. Use letter frequencies, letter patterns and your best analytical skills to decode these familiar puzzles that can be found in many puzzle magazines or online. 2. Crypto-lists: These lists were designed to introduce students to code-breaking. Each list contains words that relate to the topic. Use letter frequency and your best analytical skills to decode these lists. Remember that e
Author(s): No creator set

How to Calculate Molecular Weight
This is a six-minute video tutorial about calculating molecular weight. The instructor uses a whiteboard to calculate the weight of h2o.
Author(s): No creator set

The story of India
This five minute video. It briefly deals with some of the history of India and has excellent graphics. The problem is that it is essential a trailer for a longer video and thus offers just tidbits of history and geography. At best an introduction into the study of this country. Ends abruptly.
Author(s): No creator set

Author(s): No creator set

Identitat, mitjans de comunicaciÃ³ i testimonis
Ho va deixar escrit el reporter Ryskard Kapuscinki: "Es diu que els mitjans sÃ³n el quart poder, perÃ² jo apujaria el seu lloc en el rÃ nquing. Ja sabem que el seu paper en la polÃ­tica Ã©s cada vegada mÃ©s rellevant i que ha fet que insurrectes i colpistes de tota mena canviessin l'objectiu dels seus atacs a tot el mÃ³n: abans assetjaven palaus presidencials i seus de governs i parlaments, mentre que ara intenten fer-se en primer lloc amb el control de les emissores de rÃ dio i televisiÃ³. No d
Author(s): Toni Aira Foix

RecepciÃ³ i promociÃ³ del llibre i la lectura en la societat de la informaciÃ³
La vida d'un text comenÃ§a (no acaba) en el moment en quÃ¨ es publica. Aquesta assignatura proposa una aproximaciÃ³ al fenomen de la recepciÃ³ i la promociÃ³ del llibre, la literatura i la lectura en la societat de la informaciÃ³ i combina la presentaciÃ³ de continguts teÃ²rics -sobre les tecnologies de la lectura, els contextos digitals de recepciÃ³, les funcions de la crÃ­tica a Internet, les campanyes institucionals de promociÃ³ del llibre, el problema de la digitalitzaciÃ³ o les biblioteques
Author(s): Jordi Llobet DomÃƒÂ¨nech,VÃƒÂ­ctor LluÃƒÂ­s Mora

Photosynthesis: Life's Primary Energy Source
This lesson covers the process of photosynthesis and the related plant cell functions of transpiration and cellular respiration. Students will learn how engineers can 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.
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Trash to Treasure!
Student teams use the engineering design process to create a useful product of their choice out of recyclable items and "trash." The class is given a "landfill" of reusable items, such as aluminum cans, cardboard, paper, juice boxes, chip bags, egg cartons, milk cartons, and etc. and each group is allowed a limited amount of bonding materials, such as duct tape, hot glue and string. This activity addresses the importance of reuse and encourages students to look at ways they can reuse items they
Author(s): No creator set

Glowing Flowers
Student teams learn about engineering design of green fluorescent proteins (GFPs) and the use of GFPs in medical research, including stem cell research. The use of GFPs is simulated by adding fluorescent dye to water and allowing a flower or plant to transport the dye throughout its structure. Students apply their knowledge of GFPs to engineering applications in the medical, environmental and space exploration fields. Due to the fluorescing nature of the dye, plant life of any color, light or da
Author(s): No creator set

The Cloning of Cells
In this lesson, students continue their education on cells in the human body. They discuss stem cells and how engineers are involved in the research of stem cell behavior. They learn about possible applications of stem cell research and associated technologies, such as fluorescent dyes for tracking the replication of specific cells.
Author(s): No creator set

Swinging Pendulum (for High School)
This activity shows students the engineering importance of understanding the laws of mechanical energy. More specifically, it demonstrates how potential energy can be converted to kinetic energy and back again. Given a pendulum height, students calculate and predict how fast the pendulum will swing by using the equations for potential and kinetic energy. The equations will be justified as students experimentally measure the speed of the pendulum and compare theory with reality.
Author(s): No creator set

Sliders (for High School)
In this hands-on activity, students learn about two types of friction static and kinetic and the equation that governs them. They also measure the coefficient of static friction and the coefficient of kinetic friction experimentally.
Author(s): No creator set

Skateboard Disaster
Students examine collisions between two skateboards with different masses to learn about conservation of momentum in collisions.
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The allocation of addresses on the Internet is controlled by the Internet Assigned Numbers Authority (IANA), although authority is delegated to several local registries. IPv4 addresses may be interpreted in two ways. Initially, they were divided into distinct ranges of addresses called classes, but this proved to be inflexible and now a more flexible scheme, called classless addressing, dominates IPv4 internetworks. I shall describe both ways of interpreting IPv4 addresses because the limitat
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6.3 Authentication of information
BBC News 24, Sky News, CNN â€“ we live in an era where news has become almost instantaneous. This unit will look at how news is gathered and the technology used for its dissemination. You will also be encouraged to examine how information might be manipulated by questioning its reliability.
Author(s): The Open University

Lock and Key Hypothesis
Introducing the "lock and key" analogy of drug-receptor interaction, whereby only drugs of a certain molecular shape will 'fit' with a cell membrane receptor.
Author(s): Creator not set

Live like an Animal
In this activity, students design an innovative human shelter that is inspired and informed by an animal structure. Each group is assigned an animal class, and they gather information about shelters used by the animals in that class. After researching the topic and brainstorming ideas, students build small prototypes (models) of the structures. Finally, they present their products, explaining what attribute of the animal structure influenced their design.
Author(s): No creator set

2.11 Further exercises
Number systems and the rules for combining numbers can be daunting. This unit will help you to understand the detail of rational and real numbers, complex numbers and integers. You will also be introduced to modular arithmetic and the concept of a relation between elements of a set.
Author(s): The Open University

4.1 Scientific approaches
Hibernation is an ingenious adaptation that some animals employ to survive difficult conditions in winter. This unit examines the differences between hibernation and torpor, and discusses the characteristic signs of hibernation behaviour. It explores the triggers that bring on hibernation, and whether internal signals or external season cues are predominant. It also examines the physiological adaptations that occur in hibernating animals. This unit builds on and develops ideas introduced in the
Author(s): The Open University

Progression of Hurricane Frances, 2004 (WMS)
Hurricane Frances was the second hurricane to hit Florida during the 2004 hurricane season. This set of images shows the progression of the hurricane as it approached Florida from the Atlantic Ocean.
Author(s): No creator set