Hundreds of mussels attached to rocks in the rocky intertidal zone
Mussels have two hard shells for protection and avoid drying out. When the shell is open, the bivalve extends its foot for digging or anchoring. Mussels need ocean water for food. They are found in lower and middle intertidal regions.
Measurement of Heat
Measurement of heat is done in calories. One calorie is the amount of energy required to raise one gram of water one degree Celsius. To measure heat, you divide the change in temperature of a sample of water by the mass of the water. (02:12)
History of Economic Cycles (~1800-2000)
Cycles Research is not a commonly studied subject and yet there are definite trends in history in the finding of information about cycles. Starting with Sir William Herschel there have been reports of various length cycles in many economic variables including commodity yields and prices, stock markets, business conditions, building activity, growth, price fluctuations and industrial production. The common cycles periods found over extended time periods are mentioned and the people that they are
How Light Travels
In this video segment adapted from Shedding Light on Science, observe demonstrations of the fundamental idea that light travels in straight lines.
Learn about the lives of gorillas born in captivity in this video segment from Nature.
Bend That Bar
In this activity, the students will learn about material properties. They will learn that engineers must consider several material properties when designing. This activity focuses on strength-to-weight ratios and how sometimes the strongest material is not always the best material.
This lesson will allow students to explore an important role of environmental engineers: cleaning the environment. Students will learn details about the Exxon Valdez oil spill, which was one of the most publicized and studied environmental tragedies in history. In the accompanying activity, they will try many "engineered" strategies to clean up their own manufactured oil spill and learn the difficulties of dealing with oil released into our waters.
Reading comprehension, writing: The Geneva Convention
You learn to understand a text about legislation for asylum seekers. You learn how to express information in writing.
Drugssmokkel: een ooggetuigenverslag schrijven
Bij deze opdracht moet je je voorstellen dat je getuige was van een verdacht incident tussen een vrouw en twee medepassagiers. Op basis van een aantal tekeningen schrijf je een getuigenverslag. Bij het schrijven van zo’n verslag is het correct gebruik van de tijden een belangrijk aandachtspunt. Daarom wordt in een van de opdrachten geoefend op het juist gebruik van de tijden.
A Picture is Worth
Students are asked to explain how XRay images communicate information.
Umbilical Hernia (Spanish)
This patient education program discusses umbilical hernia, the symptoms, causes, and anatomy of the abdomen. It also reviews the benefits and risks of surgical treatment, and what to expect after the procedure. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
Simultaneous Equations Homework -- The “Generic” Simultaneous Equations
Generalizing simultaneous equations.
Principal Evaluation and Leadership Standards: Using the ISLLC 2008 “functions” as a Perspective
The primary objective of this project was to provide a more detailed description along with "real time" information to the community of educational administration preparation programs in the State of New Jersey as to what are considered to be the critical elements, skills and competencies current Chief School Administrators (CSA) in the state deem important when evaluating school building leaders. Additionally, the secondary objective was to determine the operational effectiveness of the ISLLC s
15.07.2011 – Langsam gesprochene Nachrichten
Trainieren Sie Ihr Hörverstehen mit authentischen Materialien. Nutzen Sie die Nachrichten der Deutschen Welle von Freitag – als Text und als verständlich gesprochene Audio-Datei.US-Finanzminister Tim Geithner hat einen dringenden Appell an die Kongress-Abgeordneten gerichtet, sich rasch auf eine Anhebung der Schuldenobergrenze der USA zu einigen. Es müsse umgehend ein "klares Signal" an die Welt gegeben werden, dass man seinen Zahlungsverpflichtungen nachkommen könne, forderte Geithner von
Learn with Pictures and Video S3 #2 - Relaxing in the Evening with Mexican Spanish
“Since you’ve moved to Mexico to study Mexican Spanish, you’ve worked non-stop! The only time you have to yourself is when you go home in the evening, and this is the perfect time to study Mexican Spanish. Work, study and no time to relax…how unfair is that! But you’ve figured out a way to do [...]
Seasons Aren't Dictated by Closeness to Sun
In this video, Mr. Khan focuses on why seasons are not dictated by the closeness to the Sun. Sal Khan of Khan Academy uses computer software for demonstration. (04:39)
Scale of Earth and Sun
This is a nine-and-a-half-minute video concerning the scale of Earth and Sun. Sal Khan of Khan Academy uses computer software with images for demonstration.
Scale of Solar System - Khan Academy
This is a twelve-and-a-half-minute video concerning the scale of the Solar System. Sal Khan uses computer software with images for demonstration. (12:31)
9/11 Video: What Happened and the Political Response
This is a series of videos with some narration that reveals what happened on that day and subsequent actions. It is 84 minutes in length. It is well worth showing in part, but too long for younger students. It clearly shows President Bush's reaction to the event and the Republican reaction to dissent.
Learn About Koalas
Learn About Koalas - Take a look at and learn about the habits of koala bears at the Los Angeles zoo.