SciShow
Why Are Snorkels So Short?
Have you ever longed to swim while wielding a longer snorkel? Well, there are a few reasons why they might be shorter than you'd like.
Be Smart
The Cheerios Effect
Ever notice how cereal clumps up in your bowl, or how cereal sticks to the edges of the bowl? Bubbles in beverages do the same thing.You've probably seen this surface tension and buoyancy at work, but did you know there's some...
Bozeman Science
Photosynthesis Lab Walkthrough
Mr. Andersen shows you how to sink leaf chads in preparation for the AP Biology photosynthesis lab. An empty syringe is used to remove gas from the leaves before the lab. As the chloroplasts absorb light they produce oxygen bubbles which...
Curated Video
Buoyancy: The Forces That Determine Why Objects Float or Sink
Discover the forces at work underwater, which dictate why large boats float but small pebbles sink. Physics - Forces - Learning Points. The buoyant force is an upward-acting force determined by the weight of the displaced water. Ships...
Curated Video
Hot Air Balloons
Hot air balloons rely on heat alone to keep them in the sky. How does this work? Physics - Energy And Radioactivity - Learning Points. Hot air rises in cool air because it is less dense. The hot air within a hot air balloon creates the...
Curated Video
Choosing suitable materials
If you were an alien who had just landed on Earth, what materials would you use to help you survive? Material processes - Classifying materials - Choosing suitable materials Learning Points The properties of a material determine how it...
Flipping Physics
Buoyant Force Explained: Submerged Objects in Fluids
Explore the fascinating world of buoyant force with this physics lesson on submerged objects in fluids! Join us as we dive into the principles behind Archimedes' discovery and unravel the mysteries of why objects float or sink. We'll...
Visual Learning Systems
Forces in Fluids: Buoyancy and Density
Upon viewing the Forces in Fluids video series, students will be able to do the following: Define fluids as substances that can easily flow and readily change shape. Explain that fluids flow because particles can easily move past each...
Getty Images
T/L video of volcanic eruption, Philippines, Dec 2009
T/L video of volcanic eruption, Philippines, Dec 2009
Getty Images
Hot air balloon being inflated, flame from below, Kenya, Africa
Hot air balloon being inflated, flame from below, Kenya, Africa
Getty Images
Volcano erupts mushroom cloud ash explosion into the sky, Philippines, Dec 2009
Volcano erupts mushroom cloud ash explosion into the sky, Philippines, Dec 2009
Getty Images
T/L video of ash erupting from crater of volcano, Philippines, Dec 2009
T/L video of ash erupting from crater of volcano, Philippines, Dec 2009
Getty Images
T/L video of volcano erupting ash high into sky, Philippines, Dec 2009
T/L video of volcano erupting ash high into sky, Philippines, Dec 2009
Getty Images
Volcanic ash shoots high into atmosphere from large eruption, Mayon volcano, Philippines, December 2009
Volcanic ash shoots high into atmosphere from large eruption, Mayon volcano, Philippines, December 2009
Getty Images
Large ash explosion rises into the sky above Mayon volcano overlooking Legazpi city, Philippines, December 2009
Large ash explosion rises into the sky above Mayon volcano overlooking Legazpi city, Philippines, December 2009
Getty Images
Ash shoots high into air from crater of erupting Mayon volcano, Philippines, Dec 2009
Ash shoots high into air from crater of erupting Mayon volcano, Philippines, Dec 2009
Getty Images
T/L video of ash exploding during volcanic eruption, Philippines, Dec 2009
T/L video of ash exploding during volcanic eruption, Philippines, Dec 2009
Getty Images
T/L video of mushroom cloud ash explosion from volcanic eruption, Philippines, Dec 2009
T/L video of mushroom cloud ash explosion from volcanic eruption, Philippines, Dec 2009
Getty Images
Volcano erupts and explodes large cloud of ash and steam, Philippines, Dec 2009
Volcano erupts and explodes large cloud of ash and steam, Philippines, Dec 2009
Getty Images
Ash rises from crater of volcano as glowing lava spills over flanks, Philippines, Dec 2009
Ash rises from crater of volcano as glowing lava spills over flanks, Philippines, Dec 2009
Getty Images
Zoom in on volcanic ash cloud erupting from large volcano, Philippines, Dec 2009
Zoom in on volcanic ash cloud erupting from large volcano, Philippines, Dec 2009
Getty Images
T/L video of ash erupting from active volcano, Philippines, Dec 2009
T/L video of ash erupting from active volcano, Philippines, Dec 2009
Getty Images
T/L video of ash exploding from the crater of volcano, Philippines, Dec 2009
T/L video of ash exploding from the crater of volcano, Philippines, Dec 2009
Getty Images
Rock and ash explode from top of Anak Krakatau volcano, Krakatoa, Indonesia, November 2010
Rock and ash explode from top of Anak Krakatau volcano, Krakatoa, Indonesia, November 2010