Khan Academy: Steric Number and Sp3 Hybridization

Using steric number to calculate number of hybrid orbitals. [9:47]

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]

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]

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.

Video tutorial presents an introduction to the concept of a mole as a number. [9:43]

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

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

This article describes the race to unlock the mystery of life by determining the double helix structure of the DNA molecule. The discovery of DNA and its structure is an example of collective learning.

A video lecture introduction to the definition of nucleophile, electrophile, and the Swartz Rule. Learn how nucleophile and electrophile interact. Also described is Swartz Rule's which lists the five most important concepts to understand...

Learn about the organic molecule that contains at least one carbon-carbon double bond called alkene in this video. Understand what this stable molecule looks like with the examples in this video. [8:48]