TED Talks
Ted: Ted Ed: Feedback Loops: How Nature Gets Its Rhythms
Anje-Margriet Neutel describes some common positive and negative feedback loops, examining how an ecosystem's many loops come together to make its 'trademark sound.' [5:11]
Biology 4 kids
Biology4 Kids: Regulation It's All About Homeostasis
Discover the significance of homeostasis in organisms. Identify negative and positive feedback and how systems work to balance temperature in an organism.
NASA
Nasa Star Child: Where Oh Where Does That Little Object Go?
See if you can identify the positions of the 9 planets in our solar system. Take an online quiz and get feedback on your answers.