How many lightbulbs?
91,074 Views
3,991 Questions Answered
Best of Web
Let’s Begin…
A look at sustainable energy and what we use our energy for.
How many "light bulbs" worth of energy do we use on heating? a) 20 b) 30 c) 40 d) 50
Sign in to answer questionAbout TED-Ed Best of Web
TED-Ed Best of Web are exceptional, user-created lessons that are carefully selected by volunteer teachers and TED-Ed staff.
Meet The Creators
- Video created by Cambridge University
- Lesson Plan created by Neil Payne