Learn the basics about allotropes of metalloids and metals, as a part of the overall properties of matter topic. An allotrope is basically a different form of the same element, each with distinct physical and chemical properties. For...

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.

Sometimes we want to talk about chemistry without using fancy symbols, just with words. Shouldn't we be able to do that? Yes, we should! Here's how.

This is a lecture presentation on the uses of metals. The video explains how the physical and chemical properties of metals determine their possible uses. Then the video focuses on specific metal types such as aluminum and copper and...

Today we are going to tell you how medieval weapons were made. We went to the Wolin island, for the biggest viking festival in Poland to learn the secrets from real blacksmiths.

We all hate sitting through adverts. But did you know you might have seen some subliminal adverts without even realising it? From hidden dollars in KFC to sexy ice cream, here are 10 Shocking Subliminal Messages Hidden In Adverts'

The basic nuts and bolts of how things work is explained simply by exploring the natural world and human made inventions that we come in contact with. Cement is a common construction material. How is this hard, durable substance made?...

The video discusses the composition of air, specifically the gases nitrogen, oxygen, argon, and carbon dioxide. The presenter explains how these gases react with certain compounds and how they can be made from other substances. The video...

The video discusses why human blood is red in color, explaining the role of hemoglobin and the high ratio of red blood cells to white blood cells in the composition of blood. It also touches on the different pigments that give animal...

It describes the two steps of extraction- conversion of oxide and reduction of oxide to metal.

Betelgeuse, Betelgeuse, Betelgeuse. Why were you dimming? Scientists may have finally come up with the answer thanks to data from Hubble.

Solenoid basics explained. In this video we take a look at the electromagnetic field of a solenoid coil. Learning how magnets work and how they can be used to control solenoids and solenoid valves. Working principles and working animations.

Sulfur is the 16th element of the periodic table, and is a non-metal. In its elemental form it is a bright yellow crystalline solid at room temperature. In this video we are going to look at the basic physical and chemical properties of...

Liquid oxygen has unusual magnetic properties. This demonstration with the MIT Technical Services Group and a crazy blowtorch demonstration on the curie point of iron share a glimpse into how different kinds of magnetism work.

Antibiotics are one of the greatest medical innovations ever, responsible for saving something like a gazillion lives. But today, we're worried about overusing them, and there are concerns that one day they won't really work anymore....

A legionary describes the armour called lorica segmentata or 'segmented' armour which is heavier and more uncomfortable but offers better protection, it's even arrowproof

Learn the basics about how metals are used, such as gold, copper, aluminium, steel. Where can we find these materials in our day to day world? Find out more in this video!

The Industrial Revolution describes the change in economy, technology, and culture that began in mid 18th-century Britain. These changes spanned over 200 years and included new uses for metals such as Iron and Steel, and New energy...

We’re striking gold on today’s episode of Travel Thru History! We’ll hike a “Mile-High” to a city surrounded by mountains, plains and gold mines. It’s a city diverse in indoor cultural activities as well as outdoor adventures. We’re...

Earth’s inner core grows 1 millimeter in radius per year, but its east side is growing faster than its west.

This program describes the major topographical features of Earth including mountains, plains, and plateaus. Footage from throughout North America takes students to the Rocky Mountains, the plains of Iowa, and the Colorado Plateau to...

This video is an educational overview of alloys, their properties, and different examples. The speaker explains the concept of alloys and why they are used in metals in order to increase strength and hardness. They then focus on steel as...

In this video, we explore the importance of iron as a key element in various industries, from construction to health. Discover how our bodies use iron to produce hemoglobin and how we absorb the substance through iron-rich foods. This...

Medicine/Biochemistry lesson on iron absorption, transport in the blood, metabolism and regulation of iron uptake in the body. NOTE: There is a mistake in this video: ferritin binds to Fe3+ and not to Fe2+. Sorry for the confusion :) Hey...