One such question, asked every now and then, is why humans float more easily in saltwater. There are a few places in the world where this is especially apparent, for example in the Dead Sea, or in the ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

How much water do you need to keep a cruise ship afloat? Less than you’d think. Archimedes’ Paradox lets you float a huge object in just a gallon or two of water. (It also shows why you’d need a ...

A: “An object will float in water or in air because the object is lighter than the air or the water it displaces,” notes MU physics Professor Karen King. All forms of matter such as gases, liquids and ...

Host Lloyd Liedtke guides students through hands-on experiments exploring buoyancy, balance and force. Learn why some objects float while others sink, how paddle boats move, and how weight and volume ...

Some objects float in water and other sink. But did you know that you can change whether something floats or sinks by adding a substance to the water? Let's try it and see! Pour water into a cup until ...

Have you ever noticed that balloons blown up by mouth don't float in the air, while balloons filled with helium gas do float? To understand this question, let's look at why things float. A person ...

You may or may not have pondered why your breakfast cereal tends to clump together or cling to the sides of a bowl of milk. Now there is an easy explanation. Dubbed the Cheerio Effect by scientists, ...

A planetary scientist has identified the largest-known solid object in the Solar System that could float in a bathtub. The rock-and-ice body, which circles well outside the orbits of the planets, is ...

It looks like "Harry Potter" magic, but it's just acoustic levitation: Researchers have created a device that uses sound waves to make liquid droplets and small solid objects float in the air and ...