It explains the term concentration of ores. It describes the procedure of hydraulic washing and the methods of extraction such as froath floatation, magnetic separation and leaching.

Ammonia and bleach are very popular for cleaning surfaces. However, the fact that you should NEVER mix ammonia and bleach is so well-known because their combination may lead to the formation of dangerous, potentially hazardous byproducts...

This video is a review of the topics covered in the Fossils series. Included in the review: the different processes by which fossils are formed, what fossils tell us about the past, and how scientists interpret fossils. Other terminology...

Learn the basics about condensation polymerisation within the overall organic chemistry topic.

etretat is best known for its chalk cliffs, including three natural arches and a pointed formation called L'Aiguille or the Needle, which rises 70 metres above the sea.The Etretat Chalk Complex, as it is known, consists of a complex...

It explores and generalise the procedure to form a differential equation that will represent a given family of curves.

Kinetics of Branched Reaction Schemes Using Steady-State Approximation

Here is one example in which we calculate enthalpy of reaction (ΔH_rxn).

Lightning is spectacular, from a distance. It's nature's way of transferring electricity within the sky, or between the sky and the ground. When lightning is nearby, it is a threat to safety. People are struck by lightning, in many cases...

The video is about using radar diagrams (also known as ray diagrams) to investigate how the type of lens used and the distance between the lens and object affect the formation of an image. The video shows four different ray diagrams,...

If we are going to learn about the Earth, we had better start from the beginning! The Hadean, Archean, and Proterozoic eons will take us all the way from the formation of the Earth, 4.6 billion years ago, until about half a billion years...

NASA's Hubble Space Telescope took an image of a bizarre, ghostly looking galaxy called NGC 1052-DF2 that astronomers calculate to have little to no dark matter. This is the first galaxy astronomers have discovered to be so...

An underwater “heat blob” from the Atlantic is exacerbating the warming of the Arctic Ocean and contributing to the rapid disappearance of Arctic sea ice

It describes in detail the process of gametogenesis, i.e. the formation of sperms and ova from the germ cells.

This nugget explains the general characteristics of compounds of alkali metals such as oxides, hydroxides, halides and salts of oxoacids.

Clouds manifest moisture condensed in the air. In this program they are appreciated and pondered. Clouds give clues to wind direction, humidity levels, weather patterns, and they just make pretty sights. We look at the basic type of...

Natural disasters can bring death and destruction to communities in the United States and around the world, but they can also teach us about Earth's natural processes. Teams of scientists are gathering new information about dangerous...

It describes occurrence, formation and uses of coal, petroleum and natural gas.

Hippocampus, fornix and neighbouring structures.

Footage of erupting volcanoes and earthquakes combined with animations help students to learn the causes and effects of earthquakes and volcanoes on our planets crust. Using animated maps the video helps viewers to understand how...

Learn how to draw out the formula of poly-chloroethene and poly-propene and learn about some of their uses in real life.

In this video you will learn how weird and wonderful animals are formed in the process of speciation and the formation of new species. Different selection pressures select for different characteristics. Over generations, the individuals...

It explains various polymerization reactions, formation of polyethene, polyamide, polyester,phenol- formaldehyde. It also explain the vulcanization of rubber.

Learn the basics about Polymerisation of propene & chloroethene. What is polymerisation? and what are propene and chloroethene? Find out more in this video!