Khan Academy: Crick, Watson, and Franklin

Find out how tonicity is determined by ions that don't move across membranes and how it affects the movement of water. Rishi is a pediatric infectious disease physician and works at Khan Academy. [11:02]

Sal Khan introduces the circulatory system function and the structure and function of the heart. [14:53]

This video illustrates and explains how seismic waves function. These waves are broken down into two types: surface and body. Take a look into why waves help understand the structure of Earth. [8:38]

Recognize the relationship between Gibbs free energy, reaction quotient Q, and cell voltage. [12:31]

Can ancient scriptural accounts of the world's creation by God be reconciled with Darwin's new story? This article looks at three responses to this question: Conflict, Contrast, and Convergence.

A video exploring the structure of water. Learn how the structure of water allows it be essential for life. Video reviews how hydrogen bonding causes water to have slightly negativity and slightly positive ends. [6:46]

A video introducing the intermolecular forces in water by exploring capillary action and the formation of a meniscus. Video will discuss the forces of adhesion and cohesion. [8:25]

A video lecture explaining specific heat, heat of fusion, and the heat of vaporization. See a step-by-step example of how to calculate the amount of heat needed to change the temperature of water. Also explored is the energy required to...

Get an inside look at a capacitor in this video to see how capacitors store charge. Also given is several examples of how to use the formula for capacitance to calculate charge, voltage, and capacitance. [5:42]

This video lecture will introduce the concepts of transverse and longitudinal waves. [13:02]