This lesson will explore the connections between magnetism in natural materials and electromagnetism. The ultimate goal will be for students to form an understanding that the source of magnetism in natural materials is moving charges. It is helpful, but not required, for the students to have some work with electricity, and other distance forces (such as gravity or the electric force). The lesson will probably take two 50-minute periods to complete. Although the video footage is brief, the activities are in depth, inquiry-based, and can take time for the students to explore. The materials are not specifically prescribed, but can include things such as bar magnets, compasses, iron filings, wire, batteries, steel bolts, coils, straws, and hot glue. The activities include drawing the magnetic fields of bar magnets and electromagnets. The activities also include making a magnet from a drinking straw and iron filings.

In this video lesson, the concept of momentum applied to hard-body collisions is explained using a number of simple demonstrations, all of which can be repeated in the classroom. Understanding Newton's Laws is fundamental to all of physics, and this lesson introduces the vital concepts of momentum and energy, and their conservation. Only some preliminary ideas of algebra are used here, and all the concepts presented can be found in any high-school level physics book. In terms of materials required, getting hold of large steel balls may not be easy, but large ball bearings can be procured easily. On the basis of what students have learned in the video, teachers can easily generate a large number of questions that relate to one's daily experiences, or which pose new challenges: for example, in a collision between a heavy and light vehicle, why do those inside the lighter one suffer less injury?

A career with NOAA could launch you all over the world, from the warm waters of the Caribbean to the winter wonders of the South Pole. The challenges are endless. Employment in NOAA is a job with a mission. At NOAA, safeguarding the public, protecting natural resources, strengthening the economy. It's all in a day's work. Imagine yourself. Careers in NOAA are as diverse as the line offices that make up the agency. More information can be found on the Office of Workforce Management website.

In this video adapted from NOVA scienceNOW, find out about the discovery of a new building material, the carbon nanotube, whose physical properties could theoretically enable the creation of a 22,000-mile elevator to space.

In this video from WOSU Columbus, learn about the types of communities of plants, animals, birds and fish that abound in wetlands.

In this video segment from WILD TV, a guide describes how to camouflage a personŒë_í_Œ_ body to avoid being detected in the wilderness.

Students watch video clips of animals and plants in their natural environments to determine what living things need to survive. They will then complete an illustration of their own real or imagined plant or animal fulfilling one or more of their needs for survival, within their natural environment. While this lesson does a good job explaining how animals meet their needs through their environments, additional lessons and experiences with plants would need to be provided in order to meet the full standard.

This art history video discussion looks at the Human-headed Winged Lion and Bull (Lamassu), 883--859 B.C.E., Neo-Assyrian period, reign of Ashurnasirpal II, excavated at Nimrud (ancient Kalhu), northern Mesopotamia (Metropolitan Museum of Art).

This art history video discussion examines "Kouros (youth)", Archaic Greek, Attic, ca. 590--580 B.C.E. (Metropolitan Museum of Art).

This art history video discussion looks at Barnett Newman's "Onement I", 1948, oil on canvas ,27 1/4 x 16 1/4" (69.2 x 41.2 cm), The Museum of Modern Art.

This art history video discussion examines Nicola Pisano's "Pulpit", Pisa Baptistery, 1260; and Giovanni Pisano's "Slaughter of the Innocents" Marble, 1301, Sant'Andrea church, Pistoia.

Coral reefs are often portrayed as brightly lit, bustling underwater marvels full of colorful creatures. This video segment, adapted from NOVA, paints a different picture as it explores the nocturnal behavior of organisms in the reef.

This video segment adapted from the NOW-RAMP 2002 Expedition documents a research expedition to Nihoa Island. It showcases Nihoa's unique birds and plants, the threat posed by invading grasshoppers, and restoration efforts.

This art history video dicussion examines "Nike (Winged Victory) of Samothrace", Lartos marble (ship) and Parian marble (figure), c. 190 B.C.E. 3.28m high (Musee du Louvre, Paris). The sculpture was unearthed in 1863 after its discovery under the direction of Charles Champoiseau‚ the French Vice-Consul to Turkey.

Observe the Nisqually Glacier at Mount Rainier in this video segment from NatureScene.

This resource is a lecture about Nixon and the Constitution by R. B. Bernstein.

As stated in the DocSouth Collections, "North American Slave Narratives" collects books and articles that document the individual and collective story of Black people struggling for freedom and human rights in the eighteenth, nineteenth, and early twentieth centuries. This collection includes all the existing autobiographical narratives of self-emancipated and formerly enslaved people published as broadsides, pamphlets, or books in English up to 1920. Also included are many of the biographies of self-emancipated and formerly enslaved people and some significant fictionalized first-person accounts of enslavement published in English before 1920.

This art history video dicussion examines "Nude Woman" (Venus of Willendorf), c. 28,000-25,000 B.C.E., (Naturhistorisches Museum, Vienna).

This short video and interactive assessment activity is designed to teach third graders about number riddles (numbers up to 100,000).