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 ...

We know from experience that some things float in water and others do not float. What about an orange? It all depends on if your orange has a life jacket. STEP 2: Place the orange into the water ...

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!

Have you ever wondered why ice cubes float on the surface of a glass of water? Discover the science behind why ice floats in water. Learn about the unique molecular structure of water, density ...