Bozeman Science
Natural Ecosystem Change
In this video Paul Andersen explains how the Earth's climate will natural change due to interactions between the Sun and Earth, volcanism, and plate tectonics. Species may go extinct leading to adaptive radiation or may move to a...
Crash Course
Reformation and Consequences: Crash Course European History
The Protestant Reformation didn't exactly begin with Martin Luther, and it didn't end with him either. Reformers and monarchs changed the ways that religious and state power were organized throughout the 16th and early 17th centuries....
Crash Course
Post-War Rebuilding and the Cold War: Crash Course European History
Sometimes, friendship isn't forever. At the conclusion of World War II, the old structures of power were a shambles. The traditional European powers were greatly weakened by years of total war and widespread destruction. The USSR was...
Crash Course
The 17th Century Crisis: Crash Course European History
The 17th Century in Europe was pretty rough in a lot of ways. The Thirty Years War involved a lot of countries, and a lot of battles, and it was terrible for everyone involved, as wars have aa historical tendency to be. At the same time,...
Crash Course
Modern Life: Crash Course European History
So, "modern" is kind of a loaded term, but today we're going to talk about modern life in Europe, as it looked around the time the 19th century turned into the 20th. We'll look at what life was like in the rapidly growing urban centers...
Crash Course
What Are Glaciers? Crash Course Geography
Today we’re going to talk about glaciers. These behemoth globs of compressed ice and snow moving across the land created fertile soils and physical features while also serving as frozen time capsules. They recorded both Earth’s climatic...
TED-Ed
TED-Ed: What's a smartphone made of? - Kim Preshoff
As of 2018, there are around 2.5 billion smartphone users in the world. If we broke open all the newest phones and split them into their component parts, that would produce around 85,000 kg of gold, 875,000 of silver, and 40,000,000 of...
SciShow
The Complicated Lives of Mountains | Compilation
It’s easy to discount the history and evolution of mountains on our jagged world, but they really hold an immense amount of information about history within them. From mountain ranges in space, to why Earth isn’t a waterworld, here are...
Brian McLogan
Right Triangles | Trigonometry | Pre-Calculus
In this lesson I will show you how evaluate the six trigonometric functions with right triangles. We will begin by finding the missing side of a triangle with the pythagorean theorem and then transcend into identifying the sides of a...
Learn French With Alexa
Comparing Group 1 French Verbs in 5 Main French Tenses
presents GROUP 1 French Verbs in 5 MAIN FRENCH TENSES - Lesson 53 of Alexa’s popular Beginner’s French Essentials course
Curated Video
Charity Jars (Part 2) (Use equivalent fractions to solve word problems involving addition of fractions with like and unlike denominators)
Alex owns a supermarket; she placed an empty charity jar of the same size on each of her two counters. Jar A is marked by the following scale of fractions, one thirds, two thirds, 1. And jar B is marked by the following scale, one fifth,...
JJ Medicine
Metformin Side Effects (& Consequences)
Metformin Side Effects (& Consequences) Metformin is a common medication used to reduce blood glucose levels in diabetic patients and in other patients including those with polycystic ovary syndrome. However, metformin can also cause a...
Catalyst University
Quantum Mechanics | Particle-on-a-Ring: Energy and Momentum Calculations
In this video, I calculate the energy and momentum for an electron in a quantized system (a porphyrin). ***Using the particle-on-a-ring model.
Curated Video
Identifying the Purpose of Your Essay
In this video, the teacher explains how to identify the purpose of an essay by analyzing the action verbs and subject in a prompt. The teacher provides step-by-step guidance on how to create a purpose statement for an essay, emphasizing...
Mazz Media
Unconformities
In this video students will learn about unconformities and how they help geologists to discover episodes of volcanism, uplift, erosion and deposition that provide evidence for plate tectonics during Earth's history. Through video and...
ACDC Leadership
Financial Assets
I explain the key terms of the financial sector, including: assets, liabilities, loans, bonds, stocks, and interest rates.
Mr. Beat
The American Presidential Election of 1892
The 27th Presidential election in American history took place on November 8, 1892. Benjamin Harrison had a rough term as President, and even though he had doubts himself, he decided to run for re-election. The Republican Party went ahead...
Curated Video
Multiplication with Arrays
In this lesson, students will learn how to multiply by creating arrays. They will understand the concept of factors and products in multiplication number sentences. By using arrays, students will be able to visually represent and solve...
Crash Course
Scientific Revolution: Crash Course European History
There was a lot of bad stuff going on in Europe in the 17th century. We've seen wars, plagues, and unrest of all types. But, there is some good news. Huge advances were underway in the scientific community in Europe at this time. In this...
Crash Course
The Roads to World War I: Crash Course European History
Much has been written about what exactly caused World War I. As befits a true global war, the reality is that there isn't a single cause. There aren't even three causes. There are a vast array of causes. Today we'll get into just a few...
Crash Course
The Rise of Russia and Prussia: Crash Course European History
In eastern Europe, in the 17th century a couple of "great powers" were coming into their own. The vast empire of Russia was modernizing under Peter the Great, and the relatively tiny state of Prussia was evolving as well. Russia (and...
Crash Course
The Fall of Communism: Crash Course European History
The aftermath of the collapse of the Soviet Union and its Warsaw Pact had a huge impact on the countries of Eastern Europe. As the former satellite states turned away from communism and Soviet influence, some of them shifted toward...
Crash Course
Italian and German Unification: Crash Course European History
So, we haven't talked much about Italy and Germany so far in Crash Course Euro, and that's because prior to the mid-19th century, those two nation-states weren't really a thing. Today we'll look at how Italy and Germany pulled it...
Crash Course
Crash Course European History Preview
John Green is teaching history again. This time, we're looking at the history of Europe in 50 episodes. We'll start at the tail end of the so called Middle Ages, and look at how Europe's place in the world has developed and changed in...