Shark teeth in Idaho, China, and Russia confused scientists for hundreds of years. A spiral of sharp teeth presented the first clue, but where would they even go on a shark? Learn more about the strange case in a video that is part of a...

Pop! Why does bending your joints in a certain way cause a cracking sound? This fascinating video delves into the synovial fluid and "bubbles" that exist in your in the space between stretched out joints, as well as debunks...

The use of interactive, hands-on learning games in the classroom is the focus of an interview with Dan White of Filament Games.  White models how the "thing that you are doing in the game is the thing that we want you to learn."

The threat posed by super volcanoes is explored in a short video that reviews the destruction caused by Mount Tambora in 1815 and by Peru's Huaynaputina in 1600. Think it can't happen again? The narrator contends that the explosive...

Who says scientists are boring geeks? Certainly not the narrator of a short video who dishes up the scandals associated with Tycho Brahe, a Danish scientist and alchemist (now that's two labels you don't often see together) who used...

The thinking, and science, behind hydrogen-powered cars is beautifully demonstrated in this episode. Spangler shows how, by itself, oxygen is not combustible. However, when some hydrogen gas is added, that changes! His assistant scoops...

In one of the more memorable Spangler episodes, Spangler has a large terrarium filled with sulfur-hexafluoride gas, which is six times heavier than the air we breathe! It has some amazing properties, one of which it doesn't allow...

A blow dryer and ping pong balls are all you need to demonstrate the amazing properties of air flow. In this demonstration, Spangler has a little boy as his assistant. Together, they make ping pong balls, a beach ball, and a roll of...

Make a hovercraft out of a compact disc, a balloon, and a few other materials. This is an activity that every physical science learner in your class can make if they bring a sports drink pop-top bottle to class. It will help them...

Here is a very important demonstration on why it's so important to wear helmets when doing any kind of high speed activity. A third grader's science fair project tested four different types of helmet: football, ski, skateboard, and...

The hostess visits an antique shop and obtains three different metal-made curios. She then has them melted down in a foundry, measuring the temperature at which each becomes a liquid. Since you could never do such an experiment in the...

The inner life of a cell is laid out like a science fiction film. With dramatic music playing in the background, show your learners how the organelles interact and perform. This highly scientific clip is very detailed and is geared...

This simplified explanation is an entertaining way to see how viruses reproduce in the human body. Brilliant animation and humorous commentary will keep your junior high class engaged while they observe the basics about viruses. Follow...

The BBC reports on the Indian Ocean tsunami that occurred in 2004 off the coast of Sumatra in Indonesia as a result of an earthquake. Footage of the waves and destruction around the area is shown. Maps delineate the quake's epicenter and...

Take a daring dive into the depths of a bee hive to observe how these large colonies work together to gather pollen to produce honey. These bees are busy indeed and even have their own way of communicating. Check out this video to learn...

Mr. Andersen introduces viewers to the use of a Geiger Counter. He explains the fundamental forces behind nuclear radiation and differentiates alpha, beta, and gamma radiation. Finally, he teaches how to write nuclear equations. This...

When electric current moves through a magnetic field, a force is created that can actually power a motor. Learn how to build a simple electromagnetic motor by watching this colorful and upbeat video. This episode is the third in a series...

"One of nature's boldest predators," the peregrine falcon, has the fastest raw speed amongst any creature on the planet. Follow these researchers as they study how the falcon lives and moves.

Practice makes the concepts of naming much easier. Here, Sal runs through 5 even more complicated examples, while encouraging viewers to do the same. The main development explained here is the addition of multiple types of side chains to...

A short video introduces the things other than carbon that can branch off the main chain of a hydrocarbon. The examples have double bonds, so the practice involves many of the nomenclature rules that the video series has...

After giving a situation with a number of reactants, Sal is able to review the behavior of those ions according to their stability. Amines and acyl chloride are used first. Next, he looks at the mechanism at each point to move from a...

After leading viewers through the basics of carboxylic structure, Sal uses this lecture to describe many molecules, or classes of molecules, that can be derived from acetic acid.

The mechanism with a ketone and a similar version with an aldehyde is described, where the carbonyl group and pair of electrons belonging to the oxygen react with the hydronium in water.

Imagine spending 978 hours in space! Meet Ellen Ochoa, the first Hispanic woman astronaut and the Johnson Space Center director who has done just that. The accomplishments of this amazing woman will inspire viewers.