3-D color animation with narration which shows mitochondria producing ATP in a cell. 1:11 min.
HIV Replication and Life Cycle
HIV replication is a complex multi-staged process that includes crucial steps taking place on the exterior as well as the interior of the target host cell. The first three steps involved in cell entry are termed attachment, co-receptor binding and fusion. Each step is crucial to successful viral reproduction. Once HIV virus penetrates the cell, it releases its RNA into the cell. Run time 02:29.
Virus Lytic Cycle
The lytic is the viral reproductive cycle in which a virus takes over all metabolic activities of a cell; replicates many times and destroy its host cell. 3-D animation shows the steps of a lytic infection. Grades 5-12. 1:14 min.
Virus Lysogenic Cycle
In a lysogenic cycle, viral nucleid acid becomes part of the host cell chromosome and it's replicated with it. Eventually the virus enters a lytic cycle and kills the host cell. 3-D animation takes you through the steps of the lysogenic cycle. Grades 7-12. 1:25 min.
Euglena Binary Fission
This is a few minutes of the late stages of euglena undergoing binary fission. Flagellate formed, but animals moved away before final separation occurred. Microscopic imaging set to music. Good color and focus. Grades 5-12. 3:12 min.
Busasaurus - Magic School Bus
Were dinosaurs the biggest, meanest animals that ever lived? To find out, the kids at Magic School Bus travel back to the Late Cretaceous Period - 67 million years ago. There, they see dinosaurs eat, hunt, rest, and fight. Some even take care of baby dinosaurs! The kids discover that not all dinosaurs were huge - some were as small as rabbits. And most dinosaurs weren't killers - they preferred plants to dino-burgers. But one meat eater - Tyrannosaurus rex - has a taste for a Magic School Bus sa
Magic School Bus Goes to Mussel Beach
Join Ms. Frizzle and the class as they travel to the beach and learn more about high tides and low tides. This Magic School Bus video will teach the following two concepts: (1) The intertidal zone is the ocean shore area between the high-tide and the low-tide lines. and (2) Plants and animals on a rocky shore choose homes high up, midway, or low down in the zone, based on how much battering by waves and drying out they can tolerate. Run time 22 minutes.
Photosynthesis, Part 1
This is a short slidecast of the process of photosynthesis that starts with a defintion. A quote from the video: "The primary function of photosynthesis is to produce organic compounds useful to the cell. This is accomplished by using light, carbon dioxide, and water. Overall, photosynthesis converts light energy from the Sun to chemical energy."
Where Does Photosynthesis Occur?
Photosynthesis occurs in all green plants, as carbon oxide and
water are converted into sugars and oxygen through the chemical catalyst called chlorophyll. Discover the process of photosynthesis, where plants create energy, with interesting information from a science teacher in this video.
New World Exchanges between Indians, Europeans
Indians in the colonies and the impact Europeans had on them is the theme of this video. The exchange of ideas, animals, plants is shown. Also negatives such as germs is explained. Students need to have a graph or table of these so that they can keep track as the video moves rapidly.
Effect of Electromagnetic Waves
Amazing! Video shows how to pop popcorn using three cell phones.
10.491 Integrated Chemical Engineering II (MIT)
This course introduces students to methods and background needed for the conceptual design of continuously operating chemical plants. Particular attention is paid to the use of process modeling tools such as Aspen that are used in industry and to problems of current interest. Each student team is assigned to evaluate and design a different technology and prepare a final design report. For spring 2006, the theme of the course is to design technologies for lowering the emissions of climatically a
Separation of Power
This video segment explains the separation of power between the
legislative, executive, and judicial branches of the federal government
and describes the ways in which each branch can limit the others. The
Watergate scandal is used to illustrate how the system of checks and
What Is Container Gardening?
In this video clip learn about the many advantages to container gardening, especially for those that have limited space for plants. How to plant flowers in various containers, such as plastic, clay or wood is explained and a variety of containers are shown.
Plant Reproduction: Methods of Pollination
As a prerequisite for fertilization, pollination is essential to the production of fruit and seed cops and plays an important part in reproduction. Video shows some of the different ways plants are pollinated. Run time 03:58.
Pollination and Fertilization
Insects usually assist in the fertilization of flowering plants. Fertilization occurs when one sperm nucleus fuses with the egg nucleus. Other sperms form the endosperm by fusing with egg cells. Short video clip discusses pollinators and parts of the flower like the male stigma, female stamen, ovary and embryo. Run time 01:50
Flowers: The Seed Producers
Using the Lily as an example, this clip summarizes flowering plants, their structure and method of reproduction. Clip also explains and labels the parts of the flower. (2:03)
Methods of Pollination
This video covers the various ways that a plant can be pollinated, including specific plants for each type of pollination. Insect pollination, wind pollination, cross pollination, and self-pollination.Run time 03:57.
It's a problem faced by all seed-producing plants: how to get their pollen into the flower of another plant of the same species. This video segment from Sexual Encounters of a Floral Kind explores some of the strategies plants have evolved to solve the problem. Closed captioning included. Run time 03:08.
Through the process of photosynthesis, plants harness the sun's energy and in so doing make many forms of life -- including human life -- possible. What path does this energy follow, and how is it transferred from one type of organism to another? In this feature, adapted from Interactive NOVA: "Earth," learn why 400 pounds of corn can't be converted into a 400-pound cow.