Why do our bodies age? – TED- Ed

 

 

Human bodies aren’t built for extreme aging: our capacity is set at about 90 years. But what does aging really mean, and how does it counteract the body’s efforts to stay alive? Monica Menesini details the nine physiological traits that play a central role in aging.

Lesson by Monica Menesini, animation by Cinematic.

View full lesson: http://ed.ted.com/lessons/why-do-our-…

Heat in the Environment Mini Unit Overview

by LOUISE VAILLANCOURT.

Can understanding particle theory and heat transfer modes help you build efficient devices to improve our daily lives?

Learning goal

  • Heat is a form of energy that can be transformed and transferred. These processes can be explained using particle theory of matter. (Big Idea 1 from curriculum document) (Overall expectations 2 and 3)

Over-arching Challenge

Design (or improve on a design) and build a solar oven that will cook food and sterilize water by applying knowledge of heat transfer by convection, conduction and radiation.

This project is part of the STAO Connex Series.  Click here for more details.  

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How your digestive system works TED-Ed

Across the planet, humans eat on average between 1 and 2.7 kilograms of food a day, and every last scrap makes its way through the digestive system. Comprised of ten organs covering nine meters, this is one of the most complicated systems in the body. Emma Bryce explains how the different parts of the digestive system work to transform your food into the nutrients and energy that keep you alive. Continue reading

Origins Of The Anus – Earth Unplugged

We all have an anus, but there was a time in our evolutionary past when our distant ancestors did not. In this video, Maddie Moate talks you through the origins and why we have what we have. Subscribe to Earth Unplugged for more amazing animal videos Continue reading

How Did the ‘Unsinkable’ Titanic End Up at the Bottom of the Ocean? | National Geographic

Over a hundred years ago, the Titanic sank beneath the Atlantic Ocean in less than three hours. Hailed as the most beautiful ship of her time, Titanic’s short-lived life was full of luxury. This video will explore some little-known facts about this unsinkable story. Continue reading