How does a biscuit make it from the farm to your plate? Sustainable development leader Aruna Rangachar Pohl unpacks the long journey of one of India's most beloved snacks, revealing how the current industrial farming model is eating the...

Today, billions of people around the world start their day with caffeine. But how and why did the ability to produce this molecule independently evolve in multiple, distantly-related lineages of flowering plants, again and again?

Community colleges can be a catapult to economic mobility, dramatically increasing earnings and almost all are open admission. But most students that start degrees do not finish on time, and many don’t finish at all. Hari Sreenivasan...

In this video Paul Andersen shows how increasing ocean temperatures causes coral polyps to release their symbiotic algae. This process of coral bleaching decreases the availability of energy for the coral and may eventually lead to coral...

Software developer Mike Matas demos the first full-length interactive book for the iPad -- with clever, swipeable video and graphics and some very cool data visualizations to play with. The book is "Our Choice," Al Gore's sequel to "An...

When molecules collide, chemical reactions can occur -- causing major structural changes akin to getting a new arm on your face! George Zaidan and Charles Morton playfully imagine chemical systems as busy city streets, and the colliding...

Hank talks about some of the structures in our bodies that are "leftover" from previous evolutionary phases of humanity.

In a demo that drew gasps at TED2010, Blaise Aguera y Arcas demos new augmented-reality mapping technology from Microsoft.

Imagine being able to see artwork in the greatest museums around the world without leaving your chair. Driven by his passion for art, Amit Sood tells the story of how he developed Art Project to let people do just that.

Paul Andersen shows you how to use Screenflow, Keynote, and Omnidazzle to make an educational screencast.

Remote mental health services have been around for a while, long before the pandemic. So, we've had plenty of time to study how well they work, and there are some encouraging findings.

Thanks to the Heising Simons Foundation ( for their support of this video, and of short range gravity research.



This...

Jessi and Squeaks grab a snack and learn all about why boiling eggs makes them hard!



Second Grade Next Generation Science

Standards

Disc

iplinary Core Ideas:

PS1.A: Structure and Properties of...

What do 24,000 ideas look like? Ecologist Eric Berlow and physicist Sean Gourley apply algorithms to the entire archive of TEDx Talks, taking us on a stimulating visual tour to show how ideas connect globally.

In this video Paul Andersen answers this question about chromosomes. He explains how the base pairs of DNA form genes which are organized into the chromosomes of the overall genome.

Many generations have felt they've reached the pinnacle of technological advancement. Yet, if you look back 100 years, the technologies we take for granted today would seem like impossible magic. So - will there be a point where we reach...

Have ever wondered how digital illustrations are made? This video explains the basics.

In this video Paul Andersen explains how modeling instruction can be used in the science classroom. Instead of presenting a model for the students the teacher presents and experience or experiment and the students develop the model.

Among living things, the color blue is oddly rare. Blue rocks, blue sky, blue water, sure. But blue animals? They are few and far between. In this video, we'll look at some very cool butterflies with Bob Robbins, Ph.D. from...

How would a Polar Bear do if you put it in the desert? Not well. But why? Why can't anything live anywhere? Well, this has to do with Habitats and how animals (including humans) are suited for living in one place over another. In this...

Aprende qué es Zoom, diferencias entre la versión gratuita y paga de Zoom, cuáles son las funciones de Zoom, características e incluso, aprende en qué se diferencia de otras aplicaciones de videollamadas.

En este video te explicaremos cómo usar Zoom en tu celular. Cómo iniciar sesión en Zoom en tu celular, cómo ingresar a una reunión de Zoom desde tu celular, cómo agendar una reunión de Zoom desde el celular ¡Es muy fácil!

Si quieres hacer una video llamada y no sabes cuál plataforma usar, en este video te mostramos las diferencias entre Google Meet y Zoom para que elijas la mejor opción. Conoce las diferentes características de Zoom y de Google Meet: la...

Cuando tienes un plan pago de Zoom, puedes grabar reuniones y subirlas a la nube.<br/>
¡En este video te mostraremos el sencillo proceso para hacerlo!