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 ...

Less dense solutions and objects float on top of solutions ... of the three liquids, so it sinks to the bottom. The liquids layer according to their densities. From least dense to most dense, the ...

Sinking is when something drops beneath the surface of the water and falls to the bottom, like a stone. Can you think of some other things that float and sink? Join Kit and Pup to find out more ...

Normally, this algae grows in clumps on solid surfaces or forms long hair-like filaments, but as the direct result of underwater water ... why do they float in the daytime and sink at night?