SciShow
Your Fridge Isn’t Green, but It Could Be
Refrigeration and air conditioning are among the largest sources of carbon, and the refrigerants we use are greenhouse gases, too. But green refrigerants are on the way, from elastocaloric cooling to a method a bit like salting an icy road.
Bozeman Science
AP Biology Lab 2: Enzyme Catalysis
Paul Andersen starts with a brief description of enzymes and substrates. He then explains how you can measure the rate of an enzyme mediated reaction. Catalase from yeast is used to break hydrogen peroxide down into water and oxygen. ...
Bozeman Science
Kinetic Theory and Temperature
In this video Paul Andersen explains how the macroscopic measure of temperature can be related to the average kinetic energy of molecules in motion. The Boltzmann constant and distribution can be used to calculate the root mean square...
Bozeman Science
Temperature
In this video Paul Andersen explains how the temperature is a measure of the average kinetic energy of particles in an object. The temperature is proportional to the average kinetic energy according to the Kelvin scale. At absolute zero...
Bozeman Science
Solids and Liquids
In this video Paul Andersen compares and contrasts the properties of solids and liquids. Solids have a more organized structure which can either be amorphous or crystalline. In liquids the intermolecular forces are lower and so the...
Bozeman Science
PS1B - Chemical Reactions
In this video Paul Andersen explains how chemical reactions progress as bonds are broken and reformed reformed. He explains the difference between changes in state and changes in molecules. He discussed collision theory and explains why...
Curated OER
Sub Zero Science
Spangler invites a teacher in for this segment. She has developed some amazing demonstrations which use liquid nitrogen for elementary schoolers. She drops inflated balloons into a bowl of liquid nitrogen and the results are quite...
Steve Spangler Science
Sub-Zero Science - Julie Gintzler
Spangler invites a teacher in for this segment. She has developed some amazing demonstrations which use liquid nitrogen for elementary schoolers. She drops inflated balloons into a bowl of liquid nitrogen and the results are quite...
Steve Spangler Science
Dry Ice Floating Bubble - Sick Science! #058
In this episode of "Steve Spangler Science" videos, the gas produced by the sublimation of carbon dioxide dry ice creates a nice, fluffy cushion in a bowl of water. Since it is less dense than a soap bubble and cool enough to keep it...
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...
Crash Course
Crash Course Kids 3.2: Part(icles) of Your World
In this Crash Course episode, Sabrina talks to us about matter and particles and that all matter is made up of particles. Also, she shows us how matter can change states from a solid to a liquid, a liquid to a gas, a gas to a solid, or a...