Khan Academy
Big Bang Introduction, Scale of the Universe, Cosmology and Astronomy
Sal explains the Big Bang and the spatial concepts of infinity versus a 'sphere' of expanding matter in detail.
Curated OER
Birth of the Universe, Part 3/4
Part three of this four-part series on the origins of the universe describes the radiation that can be heard in static radio signals and the other amazing remnants left today that were around at the time the universe was born. Stars,...
Curated OER
Galaxies, Part 3 of 3
Part three concludes "A Practical Guide to the Universe," completing the description of the Big Bang Theory and what it means. This episode touches on light travel, light speed, and what that means in relation to what we see. While this...
Curated OER
Atoms and Molecules
Part of a longer video created by Disney, this segment opens with a history of the telescope and microscope. This old-fashioned video is a sufficient introduction to the topic of atoms. The animations are antiquated, but they are still...
Curated OER
Valence Electrons and Forming Ions
Cute manga style animated Aya is your host for this short but good explanation of valence electrons and forming ions. She explains how to know whether to add or subtract electrons when ions are forming. Note: The voice work is a little...
Curated OER
The Atomic Model
Everything is made of Atoms and the number of electrons and neutrons an atom has determine what form it will take. This class dresses up as the components of an atom to demonstrate the Atomic Model. Great for kinesthetic and visual...
Curated OER
Beyond Einstein: Part I
Part one of this short two-part series begins with a review of Einstein's theories and what they mean to the world as we know it. This clip delves into the "Beyond Einstein" program which NASA created to further Einstein's theories. This...