|
There are 16 videos in this category and 56 videos in 3 subcategories.
Category Videos
|
|
Not Right For WatchKnowLearn
Ages: 13 - 18
1195 Views:
|
Instructor discusses how to figure out the empirical formula. Instructor uses a black screen to write on with his cursor and uses different colors to highlight points. According to instructor, this is high school chemistry.
October 11, 2009 at 12:59 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 15 - 18
607 Views:
|
Join Award winning teachers Jonathan Bergmann and Aaron Sams as they interactively teach Chemistry. 6.1: Phase Change--Kinetic Molecular Theory .This video will teach students the fundamental nature of kinetic molecular theory. ( 10:59)
January 29, 2012 at 02:46 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 17 - 18
219 Views:
|
Neutrons don’t change into protons. Except, sometimes, they do. Radioactivity is the process under which the nucleus can change
spontaneously from one element to another. Steve Weatherell suggests
that we acknowledge both the usefulness and danger... inherent in
harvesting radioactivity. (04:15)
[more]
December 27, 2012 at 12:35 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 12 - 18
837 Views:
|
Orbitals are where electrons are most likely found inside an atom. and the topic of this 13:37 long video. When energy is increased, orbitals tend to be further from the nucleus of the atom which makes it easier for valence electrons to bond with oth...er atoms. The video uses a smart board and narrator.
[more]
June 10, 2011 at 12:43 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 12 - 18
1824 Views:
|
In this video clip, the instructor talks briefly about the theories of Bohr and introduces orbitals. The instructor uses his computer screen and different colors to educate students. The instructor says this video series introduces information covere...d in a first-year high school course in chemistry. (13:38)
[more]
October 4, 2009 at 04:37 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 12 - 18
1811 Views:
|
This video is accompanied by text: "...An atom is the fundamental unit of chemical matter. The nucleus is an atom's center of mass and center of positive charge. The nucleus contains positively charged protons, shown in white, and uncharged neutrons,... shown in blue. A cloud of negatively charged particles called electrons surrounds the nucleus.
All atoms of a given element have the same number of protons, but the number of neutrons can vary. Isotopes are atoms of the same element with different numbers of neutrons in their nuclei. Here we see three isotopes of carbon. They all have 6 protons, since they're all carbon atoms..."
[more]
January 18, 2010 at 02:07 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 12 - 18
1251 Views:
|
This is a video slide show accompanied by text:"Living organisms use only a small fraction of the known chemical elements to carry out all of their biological functions. Six elements make up more than 99% of matter in living systems: hydrogen, carbon..., nitrogen, oxygen, phosphorous, and calcium. Five elements are found in much smaller amounts: sodium, magnesium, sulfur, chlorine, and potassium. Finally, 14 elements are known as "trace" elements because living organisms require them in minute quantities.
An atom is the fundamental unit of chemical matter. An atom consists of a nucleus, containing positively charged protons and uncharged neutrons, surrounded by a cloud of negatively charged electrons. Atoms of the same element that differ in the number of neutrons are called isotopes..."
[more]
January 18, 2010 at 02:12 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 16 - 18
1196 Views:
|
This silde show ia a useful overview of organic macromolecules, including aspects of their structure and function. There is no narration and no music. The viewer may have to open the slide show to 'full screen' as there is smaller print on some of th...e slides.
[more]
April 3, 2010 at 08:10 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 13 - 18
1176 Views:
|
In this five minute video oxidative phosphorylation and chemiosmosis are explained using cartoon graphics and as part of a lecture. Phosphorylation is the second part of the electron transport chain where the ATP is generated. The term used for the p...rocess of ATP being generated is oxidative phosphorylation. The hydrogen protons going through a membrane is called chemiosmosis.
[more]
June 4, 2011 at 03:13 PM
|
|
|
Not Right For WatchKnowLearn
Ages: 11 - 18
1018 Views:
|
This 12 minute video is about saltatory conduction in neurons. Saltatory conduction works because of cytoplasm and the axon being electrically conductive. Because the cytoplasm and axon are electrically conductive, the myelin prevents electrical
ch...arge to leak through the membrane. The video starts with a review and uses graphic cartoon images and a lecturer.
[more]
June 5, 2011 at 09:26 PM
|
Loading featured videos...
|