From wasps nests to nuclear reactors. Here are just a few clever ways archeologists figure out how old something is.

In this video Paul Andersen explains the importance of intermolecular forces in chemistry. Intermolecular forces exist between dipoles (like hydrogen bonds), between dipoles and induced dipoles (like Ar and HCl) and between induced...

Hank shares three cool discoveries in space science, including a celestial crucible of phosphorous, noble gases found in a supernova, and plumes of water vapor on Europa.

So, a mantis shrimp's claws are pretty strong... so strong that they can produce a bubble that's about as hot as the sun and collapses with a flash of light when they snap... and scientists aren't quite sure how they do it!

CubeSats have a lot of advantages, but they need a way to move and still stay small, and that means new miniaturized propulsion systems that can help us get these tiny spacecraft out into the universe.

From wasps nests to nuclear reactors. Here are just a few clever ways archeologists figure out how old something is.

Una capa de gas que rodea un planeta o estrella y que se mantiene en su sitio gracias a la gravedad. <br/<br/>>

Twig - Ciencias de la tierra

Descubre la atmósfera terrestre: ¿qué es? ¿De qué está compuesta?
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Twig - Química - La tabla periódica - Los n
o
metales

C
laves de aprendizaje
La atmósfera está formada por las capas de ga
se
s que...

Elementos pertenecientes al grupo 8, también conocido como grupo 0, de la tabla periódica. <br/<br/>>

Twig - Química

Los gases nobles fueron uno de los últimos grupos de elementos que se descubrieron. Son muchas las aplicaciones que tienen en el mundo que nos rodea, desde los globos de helio hasta su presencia en las bombillas.
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¿Qué información obtenemos de la tabla periódica sobre los elementos, sus propiedades y su comportamiento? ¿Por qué viene definido cada elemento por su número atómico?
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Twig - Química - La tabla periódica - El...

Aprende por qué las carcasas de los electrones determinan las propiedades de los elementos y si éstos permanecen estables o reaccionan violentamente.
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Twig - Química - Los átomos y los enlaces - L
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Elements in group 8, also called group 0, of the periodic table.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

A layer of gas surrounding a planet or star, held in place by gravity.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig...

Discover the Earth's atmosphere: what it is and what it is made of?
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Chemistry - Periodic Table - L
ea
rning Points.
/> A Twig FactPack Film.
Open a discussion on what has been already learnt in a...

Learn why electron shells are responsible for the properties of elements, and whether they are stable or have violent reactions. Chemistry - Atoms And Bonding - Learning Points. An element's reactivity is determined by the number of...

The noble gases were one of the last groups of elements to be discovered. From helium balloons to light bulbs, these gases have many uses in the world around us. Chemistry - Periodic Table - Learning Points. The noble gases are found in...

What does the Periodic Table tell us about the elements, their properties and behaviours? And why does the atomic number define each element? Chemistry - Periodic Table - Learning Points. The structure of the atom reveals why the...

We look at how an incandescent light bulb can be made. First we attach a tungsten wire to electrodes in a flask of air and pass a current through the wire. The wire glows briefly before burning and breaking. Next we fill the flask with...

Writing electron configurations can be a long and daunting task, until you learn the shortcut! Often times called the noble gas configuration, the shorthand notation will have you writing electron configurations very quickly! In this...

This video covers:

0:43 - The number of electrons per energy
level
4:24 - why atoms react / why they lose or gain

electrons

This vi
deo is suit
able for:
- Al
l tiers
- All exam boards
- Triple and...

"What is temperature?" is a surprisingly tricky question. In this video we approach it in three levels of difficulty. Going from our every day notion of temperature all the way to its fundamental roots in statistical thermodynamics.

We just learned about relative dating, but if you really want to calculate the age of a rock, absolute dating is what you need. This takes advantage of the presence of radioactive nuclides that decay at a reliable rate, so it is also...

This video examines details relating to the planets Earth, Mars and their moons, as well as the Asteroid Belt.