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Posts tagged density

August 18, 2016



How Do You Make A Diet-Coke Float?

Here is an at home experiment you can try! Learn about molecular density!

August 16, 2016


Norewegian ULA class submarine at surface


Ever wonder how submarines rise and sink so quickly? Find out on today's Moment of Science!

July 27, 2016


1922 US Army airship

A Science Joke: Hydrogen

Why is it that you can't put down hydrogen gas? Find out on this Moment of Science.

November 9, 2012


ice cubes close up

How Does Ice Cool Drinks?

Drop a few ice cubes into a glass of water at room temperature, and in a few minutes the water will cool. How does this work?

September 26, 2012


lava lamp in shadow

The Physics Of A Lava Lamp

There are two ingredients inside a lava lamp: a watery liquid, and a waxy compound that collects at the bottom when the lamp is turned off.

May 21, 2012


needle floating in a plate of water

The Floating Needle

Here's a neat experiment you can try at home!

November 21, 2011



Heavy Air

Here's an odd-seeming question. Does air weigh anything?

June 7, 2011


Bottles with experiment

How Does The Cartesian Diver Experiment Work?

The Cartesian diver, named after French philosopher and scientist René Descartes, works because of several factors.

April 5, 2011


lava lamps in the dark

Make Your Own Lava Lamp!

This easy-to-do experiment is a great way to learn about density.

April 1, 2011


floating wood

The Archimedes’ Principal And Rock Density

Why does a small rock sink to the bottom of a glass when a piece of wood floated on top?

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