Without the work of decomposers, living organisms would eventually use up all the raw materials in the environment, and dead organisms and wastes would pile up. This video segment from Interactive NOVA: "Earth" describes the role of decomposers in the living world. [3:06]
A video module showing that to determine a decrease in momentum you should look at impulse. Videos explores the equation for impulse and its application. Also given in lesson is an example of how to decrease momentum. [4:59]
Enjoy reading and seeing video clips of NASA's "Deep Impact" project. "Deep Impact" was a project designed to examine comets with impact instruments.
What causes the circulation of ocean waters that are too deep to be affected by wind? Find out how salinity and temperature drive the deep sea currents. This resource has several videos and an online quiz.
In this life science-focused activity, students will pretend to have internships as environmental scientists as they research why exactly water is essential for life. They will collect and analyze data to help them calculate about how much water they use on a daily basis and consider where cuts can be made. Following the virtual experience, students will calculate approximately how much water each person would need per day to survive on Mars. They will consider how much of this water could be reused, and they will determine how much water the people on Mars need to survive until the shuttle returns from Earth. Student groups will ultimately develop a plan that maps out water use until the shuttle returns, and they will review each other’s ideas as they search for the most efficient and realistic plan.
Estimated time required: 2-3 class periods.
Technology required for this lesson: Laptop/Desktop, Smartphone, Tablet.
Defenders of Wildlife provides information and interactive media to teach students about planet Earth and its' inhabitants. Students can research endangered species (over 50 listed here), learn how to defend and protect the environment, see how the web of life works and other engaging activities.
Learn all about cheetahs in this in-depth fact sheet.
A narrated video tutorial defines two types of heat exchanges: heat of fusion and heat of vaporization. The content focuses on the relationship between heat energy either absorbed or released, and arrangement of particles. [3:42]
Find out how ionic compounds dissociate into positive and negative ions in an aqueous solution. [1:59]
An introduction to pH and the pH scale. See examples of calculating pH of pure water, bleach, and orange juice. [11:38]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
In this video segment adapted from ZOOM, cast members use a hair dryer to balance a ball in a stream of air, seemingly defying gravity. [3:21]
How can you keep a ball from falling out of a jar if the jar is upside down? Watch the ZOOM cast use centripetal force to meet this challenge. [2:54]
Students are asked how acceleration, mass, momentum and velocity are involved in mountain boarding. [0:32]
Martin Dahl, a Danish scientist, does research on living things and non-living things. Come see what he discovers.
Watch warm water float on top of cold water in this video segment adapted from ZOOM. [3:22]
Will a grape float in oil? Will a metal nut sink in corn syrup? Watch as the ZOOM cast tests the buoyancy of a variety of liquids and objects. [4:22]
Geologist Dr. Bob Raynolds and space scientist Dr. Ka Chun Yu explain the planetary processes that affect water supplies around the world and in the American West. Aired May 24, 2011. [1:14:41]
A comprehensive guide to national invasive species, including alien plants, animals, and microbes. An invasive species is one that is likely to cause environmental or human harm.
This is the website of the Department of Nuclear Engineering at University of Michigan. There a links to academics, research, degree programs, etc.
Video tutorial uses examples and formulas to show how to derive displacement as a function of time, constant acceleration, and initial velocity. [9:57]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.