Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Distributive Property Example 1
This video provides several examples of using the distributive properties of multiplication and division to rewrite expressions. Practice problems are available. [5:39]
Khan Academy
Khan Academy: Video Games and Violence
In this video lesson students look at a set of data, transfer the data into a two-way table and then use that table to make inferences about the data.
Khan Academy
Khan Academy: Seismic Waves and How We Know Earth's Structure
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]
Khan Academy
Khan Academy: Human Evolution: Humanity on Earth
This session travels the earth tracking the evolution of humanity from the age of the dinosaurs through human beings. [12:26]
Khan Academy
Khan Academy: Chronometric Revolution: Measuring Age on Earth
The revolutions of chronometry, the study of time, with respect to measuring time on Earth from forms of writing to radioactivity. [9:54]
Khan Academy
Khan Academy: Detectable Civilizations in Our Galaxy 1: Life in the Universe
A system presented to figure out how many civilations with enough radioactivity to be detected within the Milky Way. [13:03]
Khan Academy
Khan Academy: Art History: Nicola and Giovanni Pisano
Video on the thirteenth-century sculptors Nicola and Giovanni Pisano, with biographical and historical information. [13:19]
Khan Academy
Khan Academy: Art History: Victorious Athlete: The Vaison Daidoumenos
Video discussing a Roman copy of a Greek sculpture of a youth, c. AD 69-96. The original statue, Diadoumenos, by Polykleitos, c. 430 BC, was melted down for its bronze. Includes links to additional information and images. [9:03]
Khan Academy
Khan Academy: Art History: Polykleitos, Doryphoros
Article and video discussing the history and features of the Classical Greek sculpture Doryphoros by Polykleitos. [5:08]
Khan Academy
Khan Academy: Position vs. Time Graphs
This video teaches the viewer how to read a position vs. time graph. It explains how to use the graph to determine the following quantities: displacement, distance, average velocity, average speed, instantaneous velocity, and...
Khan Academy
Khan Academy: Acceleration vs. Time Graphs
Video tutorial explains how to read an acceleration vs. time graph and shows how the area under the curve gives the change in velocity, while providing a few examples. [14:37]
Khan Academy
Khan Academy: Oxidation and Reduction
An introduction to oxidation states, oxidation, and reduction. Find some tips for remembering oxidation and reduction. [10:09]
Khan Academy
Khan Academy: Oxidation State Trends in Periodic Table
Investigate trends in common oxidation states for main group elements with this video. [8:34]
Khan Academy
Khan Academy: Practice Determining Oxidation States
Sal Khan explains how to determine oxidation numbers in magnesium oxide and magnesium hydroxide. [4:22]
Khan Academy
Khan Academy: Unusual Oxygen Oxidation States
Determining oxidation numbers in hydrogen peroxide, H2O2, and oxygen difluoride, OF2 is the focus of this video presented by Sal Khan. [4:10]
Khan Academy
Khan Academy: Introduction to Redox Reactions
Sal will find the half reactions in a combustion reaction and identify what is getting oxidized and reduced. [10:07]
Khan Academy
Khan Academy: Redox Reaction With Iron
For the reaction between Fe and HCl, know how to identify the half reactions and what is getting oxidized and reduced. [6:01]
Khan Academy
Khan Academy: Oxidizing and Reducing Agents
How can oxidizing and reducing agents be identified? Sal Khan will explain. [8:25]
Khan Academy
Khan Academy: Balancing Redox Reactions in Acid
Sal will illustrate how to balance redox reactions in acid. [11:58]
Khan Academy
Khan Academy: Balancing Redox Reactions in Base
Understand how to balance a redox reaction in a base. [13:57]
Khan Academy
Khan Academy: Dissolving Zinc in Copper Sulfate
What happens when zinc is added to a solution of copper sulfate? Identify the half reactions to see what oxidized and reduced. [4:57]
Khan Academy
Khan Academy: Electrodes and Voltage of Galvanic Cell
Identify the anode and cathode in a galvanic cell and calculate the voltage using standard electrode potentials. [4:28]
Khan Academy
Khan Academy: Shorthand Notation for Galvanic/voltaic Cells
Understand how to describe galvanic and voltaic cells using shorthand notation. [7:13]
Khan Academy
Khan Academy: Lead Storage Battery
An overview of how to balance the redox reaction (in acid) that occurs in a lead storage battery. [9:03]