We found 177 reviewed resources for cosmology
A Brief History of the UniverseLesson Planet
13 mins 9th - Higher Ed
No one was actually there to see the birth of the universe, but years of collaboration between physicists and mathematicians allow us to glimpse all but a fraction of a second of it. A narrated journey shows the phase changes early...
Explore the Solar System: 360 Degree Interactive TourLesson Planet
5 mins 6th - 12th
Go on a galactic tour like no other! The perfect idea to wrap up a solar-system unit, an interactive video leads the class from the sun to the Kuiper Belt. Pan around the screen as the narrator describes each of the main features in our...
The Map of PhysicsLesson Planet
8 mins 9th - Higher Ed CCSS: Adaptable
Aristotle said, "The more you know, the more you know you don't know." Physics includes everything from the laws of motion to quantum gravity. An interesting video attempts to cover the main concepts of every branch of physics in only a...
Cosmic Background Radiation 2Lesson Planet
10 mins 9th - 12th
Electromagnetic radiation emitted by points at high temperature 13 billion years ago is only now reaching us in a uniform fashion. Sal explains the idea that this cosmic radiation may disappear as certain areas mature, as well as when...
Plate Tectonics-Geological Features of Divergent Plate BoundariesLesson Planet
12 mins 8th
Sal explains the mechanism of crust lift developing at hot spots and the density changes at those point continuing to cause depressions. The depressions and thinner layers fill with water resulting in a flooded rift valley.
Radius of Observable Universe (Correction)Lesson Planet
2 mins 9th - 12th
A two-minute video corrects a slight error in the previous Khan Academy video about the observable universe. Sal points out that 300,000 years does not really have an impact on the number 13.7 billion, or the estimated time of the Big Bang.
Stellar Parallax ClarificationLesson Planet
2 mins 11th - Higher Ed
A short clarification begins where the last video on stellar distance left off. Its intention is to clarify the trigonometry involved in using Parallax to determine stellar distance. The instructor uses the equations from the previous...