What is sound?

What is sound? Sound is a form of energy, just like electricity and light. Sound is made when air molecules vibrate and move in a pattern called waves, or sound waves. Think of when you clap your hands,…

En 2017 en España habrá, por primera vez, más muertes que nacimientos

Cada vez seremos menos. A partir de 2017 en España habrá, por primera vez, más muertes que nacimientos y en los próximos diez años la población española se reducirá en 2,6 millones de personas,…

Un español en la cima matemática

Francisco Santos, matemático cántabro de 42 años, ha refutado la conjetura de Hirsch, enunciada hace 50 años y que nadie había conseguido resolver.

Propierties of air: hot air in balloons

This video shows a burner heating the air in a hot air balloon. Duration: 0.55 minutes.

Picnic at the Pond: Competition for water among organisms

This two minute video shows the competition for water among organisms along a river during the dry season in Kruger National Park in South Africa. It addresses the part of the key idea about the…

Endangered species

This video is about the endangered species threatened with extinction. Duration: 5 minutes.

The Minds of Stone Age Toolmakers

Video from Emery University that explains the characteristics of the first stone tools ever found, with recreations of the cutting techniques used by our early ancestors that helps understanding of the…

Spain sees sixfold increase in immigrants over decade

Article in the Guardian that describes the increase in immigration into Spain in the past decade. It is a good resource for evaluating how Spain changed from being a country of emigrants to a country of…

TÉRMINOS DE ECONOMÍA.docx

Eye anatomy

Multimedia animation about the eyeball where students can identify the main parts of the eye: cornea, pupil, iris, lens, sclera, optic nerve, retina, etc.