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? Try it in this experiment and see!

Eggs are not always going to sink in a glass of water. Learn more about density with the ECHO Science Spotlight activity you can try at home!

Whether an object floats or sinks in water is determined by the ratio of its weight compared to its volume.

Build literacy skills while making predictions with this sink-or-float activity.

Is It Better for Poop to Sink or Float? Stool is denser than water, so it usually sinks into the toilet, Dr. Josovitz says.

Whether an object floats or sinks in water is determined by the ratio of its weight compared to its volume.