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There are 21 videos in this category and 5 videos in 1 subcategory.
Category Videos
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Not Right For WatchKnowLearn
Ages: 8 - 14
2327 Views:
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The undiscerning palate, wide jaws and powerful teeth of a tiger shark make it a constant threat to sea turtles. However, the large head and strong, muscular jaws of the loggerhead sea turtle help it fend off fierce predators. In this video segment f...rom Nature, a loggerhead sea turtle refuses to fall prey to the tiger shark and attacks its voracious enemy. Great example of predator/prey relationship. Closed captioning included. Run time 02:41.
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October 2, 2010 at 11:43 AM
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Not Right For WatchKnowLearn
Ages: 8 - 18
3667 Views:
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You'd have to be one tough and hungry animal to try to make a meal out of a venomous western diamondback rattlesnake. After all, this North American desert dweller is one of the most dangerous snakes in the world. This video uses professional video ...footage and narration from National Geographic to show the battle between two predators, the rattler and a hawk. The issue of which animal is the superior predator is quickly established. An excellent video while teaching a lesson about predators. More predator videos can be found within the various subcategories under Life Sciences/Animals/Mammals or by doing a quick search on the home page for "predator." Run time 01:44.
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April 7, 2009 at 03:02 PM
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Not Right For WatchKnowLearn
Ages: 12 - 18
1532 Views:
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Hank brings us to the next level of ecological study with ecosystem ecology, which looks at how energy, nutrients, and materials are getting shuffled around within an ecosystem (a collection of living and nonliving things interacting in a specific pl...ace), and which basically comes down to who is eating who. (10:10)
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December 31, 2012 at 04:56 PM
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Not Right For WatchKnowLearn
Ages: 7 - 11
5518 Views:
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A food chain is made up of three groups: producers, consumers, and decomposers. They interact with each other in an ecosystem to get the energy they need. Learn more about food chains with this cartoon animation from StudyJams. A short, self-check...ing quiz is also included with this link.
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May 17, 2011 at 09:09 PM
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Not Right For WatchKnowLearn
Ages: 10 - 15
6955 Views:
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This music video teaches about food chains and the pyramid of energy. Watch it a few times and you'll be completely on top of trophic levels and energy transfer. This video is a great learning tool for late elementary and middle school age students ...to help build background knowledge and to help make real world connections between nature and the classroom. This video will help students to remember all the details that make food chains what they are. (2:46)
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December 6, 2009 at 06:07 PM
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Not Right For WatchKnowLearn
Ages: 5 - 17
8238 Views:
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This short video discusses the grassland ecosystem and food chain as well as various preditor/prey relationships. Herbivores such as the gazelle feed on the grass while cheetahs, lions, and hyenas compete for prey in the area. As demonstrated in thi...s video, the food chain always starts as photosynthesis and ends in decay.
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March 29, 2010 at 07:56 PM
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Not Right For WatchKnowLearn
Ages: 5 - 12
4283 Views:
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A dragon puppet explains the basics of the food chain and food web. The explains and gives examples of many vocabulary words from a food chain, including producer, consumer, carnivore, herbivore, omnivore and decomposer. The puppet also discusses "c...hain reactions" - what happens when you remove an item from a food chain. The end of the video ties it all together with food webs. Run time. (06:40)
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March 29, 2010 at 07:47 PM
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Not Right For WatchKnowLearn
Ages: 5 - 13
1854 Views:
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This short music video from Bill Nye, the Science Guy addresses plankton and ocean food chains. The main message is that although plankton is smaller than the eye can see, even large animals like the whale use plankton as a food sorce. Catchy song ...and lyrics. Not much information beyond "power to the plankton" but a great introductiom to catch students' attention on ocean food chains.
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March 29, 2010 at 08:08 PM
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Not Right For WatchKnowLearn
Ages: 7 - 12
2497 Views:
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Food Chains
From kidsknowit.com, produced by Kids Know It
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Learn about food chains and how they combine to form complex food pyramids. This short, computer-animated video will briefly cover the following key concepts: food chains, producers/consumers, the relationships between plants and animals in a food c...hain, the role of sunlight in a food chain, the role of plants in a food chain, the role of consumers in a food chain, food webs, food pyramids, and balancing a food pyramid. The video ends with a 10-question, fill-in-the-blank quiz. (The video does not mention decomposers, which is another essential part of food chains.)
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April 11, 2010 at 12:01 AM
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Not Right For WatchKnowLearn
Ages: 10 - 18
1351 Views:
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This video segment adapted from LOKE Films and the Arctic Monitoring and Assessment Programme describes how contaminants such as mercury and PCBs affect Arctic wildlife. Learn about how pollutants accumulate in the fats of animals and how species at ...the top of a food chain, such as glaucous gulls and polar bears, have higher levels of toxins than species at lower trophic levels. Run time 03:21.
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August 14, 2010 at 12:13 AM
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