Students learn about the types of possible loads, how to calculate ultimate load combinations, and investigate the different sizes for the beams (girders) and columns (piers) of simple bridge design. Students learn the steps that engineers use to design bridges: understanding the problem, determining the potential bridge loads, calculating the highest possible load, and calculating the amount of material needed to resist the loads.
You're a Pushover!
The purpose of this activity is to demonstrate Newton's 3rd Law of Motion, which is the physical law that governs thrust in aircraft. The students will do several activities that show that for every action there is an equal and opposite reaction.
Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). They can use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Before they begin the experiment, however, students must come up with a well-worded hypothesis to be tested. After running the experiment, students pool their data to get a large sample size, determine the measures of
Living and non-living things
Living things often rely on non-living things to accomplish daily tasks. Living things have several characteristics that non-living things do not, such as the ability to move, eat, breathe, and reproduce. Living things and non-living things can interact even though they do not have the same characteristics.
Sustainable Tourism Certification
A lecture on sustainable tourism
The Marshall Plan and economic recovery of postwar Europe will be discussed.
Space Week: Space Station and Beyond, Part 2
A Mars mission will be an expensive, long-term endeavor, but it's a dream that inspires the next generation of space explorers.
Wisskomm Videocast, 51 und 52. Woche 2007
German Vodcast about Science Communication. Unsere Ausgabe zum Jahreswechsel: Bjoern Brembs, Ph.D. an der Freien Universität Berlin und Editor bei PLoS One über die Vorteile von PLoS One und SciVee für die wissenschaftliche Arbeit und wie man dadurch gute Mitarbeiter gewinnen kann.
NASA's Discovery Launch Dress Rehearsal
The Discovery astronauts train at Kennedy for the upcoming STS-124 mission. For more information see: http://www.nasa.gov
Snow Cover over North America during the Winter of 2001-2002 (WMS)
The amount of snow covering the land has both short and long term effects on the environment. From season to season, snow coverage and depth affect soil moisture and water availability, which directly influence agriculture, wildfire occurrences, and drought. In the long term, the part of the Earths surface covered by snow reflects up to 80 or 90 percent of the incoming solar radiation as opposed to the 10 or 20 percent that uncovered land reflects, and this has important consequences for the Ear
Traditional Chinese Paper
This 1:48 video shows how one Chinese town still makes paper the traditional way. The students will learn how the bamboo is harvested, turned into pulp, and made into paper.
Writing Acrostic Poems
You will visit different Web sites to learn about writing acrostic poems. Then, you will create an acrostic poem of your own.
HHV-6 Glycoprotein Complex Formation is Required for the Folding and Trafficking of the Complex - Y.
HHV-6 Glycoprotein Complex Formation is Required for the Folding and Trafficking of the Complex, gH/gL/gQ1/gQ2 and its Cellular Receptor Binding; gQ1 - Y.Mori
This patient education program explains arrhythmia including the causes, symptoms, diagnosis, and treatment of the disease. This resource is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
Conflict and the Consumer
Fact-sheet outlining the various influences at play in the area of consumer affairs. Includes references to the role of ombudsman, the small claims court and the three main pieces of legislation relevant to the topic.
Myths and Legends of Ireland - Quiz
This quiz assesses students knowledge of some of our most famous myths and legends
Rodin - Quiz
Children will learn about Rodin and his sculptures
Food and Drink - Quiz
An eight question quiz to test your scientific knowledge of food and drink
"Such Cases of Outrageous Unspeakable Abuse...": A Puerto Rican Migrant Protests Labor Conditions Du
In 1917 the United States declared the inhabitants of Puerto Rico, a U.S. possession since 1898, to be citizens of the United States--a "gift" that many Puerto Ricans resented. Seeing an untapped source of inexpensive labor, the U.S. Labor Department worked with industry to facilitate the migration of Puerto Rican workers to America. During the First World War the War Department agreed to transport Puerto Rican workers to labor camps in the United States where they would be housed and fed while
South Boston High School, tape 1
African American students board buses at South Boston High School. Boston Police officers are stationed near the school. Police cruisers escort buses to and from the school. Jerome Wynegar (Headmaster, South Boston High School) stands in the schoolyard. White students exit the school after the buses depart. A passerby tells the camera crew that their presence causes a disturbance.