Keep the knowledge flowing in your physics classroom! An in-depth video lesson discusses the characteristics of fluids. The narrator includes Pascal's Principle and Archimede's Principle as well as buoyant force. This is the 14th lesson...

Does light always travel in a straight line? The narrator of a short video discusses the path light travels when going between different mediums and points out that light will want to travel on the path that minimizes the travel time....

Discover the process for extracting gases from the air. A 35-part lesson series continues with a discussion of fractional distillation. The instructor explains how to cool air to a liquid state and then slowly warm the air to collect...

Take a deep breath before watching this video from PBS Digital Studios that models for viewers how humans are connected through the air we share. The video explores how small the earth's atmosphere is compared to the rest of Earth.

When you tell people you know why the wind blows, it won't be a bunch of hot air. In the video from PBS Digital Studios, viewers learn how wind is a consequence of differences in air pressure. Along the way, the video covers the Coriolis...

What are the other two spheres on Earth? The hydrosphere and atmosphere, of course! This is the focus of a video that explains what makes up the hydrosphere and atmosphere.

It's amazing how easy it is to forget that every second of our lives we are being pushed on by an uncountable number air molecules. Explore with your class the concept of air pressure and how it affects our bodies, the earth's...

Four types of air masses interact in the atmosphere above the US. The collision of these air masses forms a front, which, in turn, creates our weather. Concepts are explained by Sam and RJ, thus preventing a snowball fight. Your class...

There's a lot going on here: air pressure changes, inertia, and chemical reactions. All of this occurs in 60 seconds time! As an end of the year physical science assessment, consider showing this video clip and then having learners write...

There's a lot going on here: air pressure changes, inertia, and chemical reactions. All of this occurs in 60 seconds time! As an end of the year physical science assessment, consider showing this video clip and then having learners write...

Push a straw through a potato using air pressure. This is a good for modeling how air pressure works.

Here is an unforgettable demonstration of the power of air! Because the column of air is about 250 miles or 400 km tall, its weight on a sheet of newspaper is enough to hold a stick in place as you smack the other end to break it....

Several concepts are explored with Steve Spangler on the Ellen DeGeneres show. Combustion, air pressure, and polymers demonstrations are done, but very little scientific explanation is offered. At the end of the year, your could have...

A teenaged Jack Spangler demonstrates how reducing air pressure in a bottle can pull a boiled egg inside. Then dad does a similar demonstration using liquid nitrogen to reduce the air pressure. Even though the result is the same, the...

Only a minute and a half long, this video discusses how air acts as an insulator and why air higher in the atmosphere is colder than it is down closer to Earth's surface. He defines the lapse rate and shows how to calculate it. Because...

Hank Green teaches how differences in air pressure, attempting to reach equilibrium. are what causes wind to blow. He also mentions Earth's rotation and the Coriolis effect. Have your class watch this video as a review to your lesson on...

Mr. Vanden Heuvel is in the bathroom again! This time he examines the strength of atmospheric pressure with a classic demonstration of filling a glass with water in the sink to reveal the column that fills the glass. Then he places a...

Dive deep with air pressure as Bill shows how it keeps liquid from entering an upside down beaker when placed underwater. Then watch a rock music video about pressure. If you are putting together a PowerPoint on fluid pressure, you may...

Watch as the MythBusters team put the famous myth that you can't fold paper any more than seven times to the test. [3:53]

Abby Brown, KIDS Clubhouse Adventures co-host, loves to help kids have fun while learning! In this segment, Abby teaches kids about the weather. Kids learn to observe the air and sky as well as a thermometer in order to evaluate the...

Check out this cool science experiment video to see proof that carbon dioxide is heavier than air. [1:12]

Find out why the two lightest elements are the only two gases that escape Earth's atmosphere. [2:17]

Investigate dirt and why just about everything on the planet depends on it! This video explores soil's properties. Learn how soil is a mixture of minerals, water, air, and organic matter. [3:43]

Find out exactly why air goes in and out of the lungs. [12:59]