Have you ever noticed the moon hanging out in the daytime sky and wondered why? Join Jessi and Squeaks to find out!

Rodents are known for being pretty small, but wait till you see the world's largest rodent: the capybara!

Around 20 years ago NASA launched a spacecraft to study the comet Wild-2. What it brought back would cause scientists to wonder whether the building blocks of life could have arrived at Earth on a comet.

What is happiness, and how can we all get some? Biochemist turned Buddhist monk Matthieu Ricard says we can train our minds in habits of well-being, to generate a true sense of serenity and fulfillment.

Paul Andersen continues his description of DNA and RNA. He begins with the structure of DNA and RNA and moves into the process of DNA Replication. He also describes the central dogma of biology explaining how DNA is transcribed to mRNA...

Left vs Right

Mr. Andersen describes the major groups on the periodic table.

Mr. Andersen explains the simple principles behind simple machines. He shows how the mechanical advantage of a simple machine can increase the input force. A brief discussion of work is also included.

Mr. Andersen explains the basics of balancing chemical equations. A visual guide shows you how to change coefficients to balance the atoms in reactants and products.

In this video Paul Andersen explains how electric circuits contain different elements which can be connected in series or in parallel. The following four elements are explained in detail; emf, resistor, capacitor, and switch. The...

The world owes much of its cultural legacy to Constantinople's walls. When Constantinople was under seige by neighboring enemies, the Roman city's elaborate system of moats, outer walls, and inner walls stood tall. Surviving numerous...

Did you know that of all of the rocks in the world, there are only 3 main kinds? What are they? And how can you tell them apart? Jessi and Squeaks show you how you can become a rock detective!

New ReviewIt's a cavalcade of color!

New ReviewIt just keeps going!

New ReviewIn this math video lesson, students learn how to use substitution to solve a system of linear equations in a clear, step-by-step way. The problem presents a system along with four possible solutions, and students are asked to determine...

New ReviewIn this short math lesson, we’ll solve a quadratic equation step-by-step using completing the square. We follow 6 quick steps: 1️⃣ If necessary, “move” c to the right side of the equation. 2️⃣ If necessary, divide all terms by a. 3️⃣...

New ReviewIt's alive!!!

New ReviewThis can be dangerous, so be aware!

While this may look like two linear equations we are actually working with a linear equation and a reciprocal equation.

In this video we are going over how use the height of an oblique triangle to determine if you have 1 2 or no triangles

Let's start with a basic factoring technique which is factoring out the GCF of binomials. We are looking for common factors of each term that we can "factor" out so we can rewrite the expression as a product.

This video explains how to solve easy and hard linear equations. The easy example demonstrates solving a two-step equation (0:46), while the hard example tackles a more complex equation involving a variable in the denominator and...

The video explains how to determine the radius of a circle from its general equation (0:00). Brian McLogan demonstrates the process of completing the square to transform the given equation into the standard form of a circle's equation...

In this video I will show you two different ways to break the give triangle into 4 equal sections by area