Final answer:
The concept being discussed is physics, specifically the phenomenon of buoyancy. The idea that higher density snow will make skis or boards float better is incorrect; objects float more readily on fluids that are denser than they are, not the other way around.
Step-by-step explanation:
The question you've asked is related to the concept of buoyancy, which is a topic in physics. The statement 'Higher density snow has more "body", causing your skis or board to float to the top more readily?' is actually a misconception. It's not the higher density snow that causes your skis or board to float, but rather the opposite. Materials that are less dense than the fluid (or, in this case, snow) they are in will float more readily.
In physics, an object will float in a fluid if its average density is less than the density of the fluid. This is because the fluid, which has a higher density, can support the object due to the buoyant force it exerts, which is equal to the weight of the fluid displaced by the object.
Many familiar examples demonstrate this principle, such as oil floating on water, icebergs floating in seawater, and hot wax rising in a lava lamp. In your example, the skis or snowboard are floating on the snow because their average density is less than that of the snow. If the snow were denser (more compacted), you would need to displace a greater volume of snow to experience the same buoyant effect. On the contrary, if the snow is less dense (fluffier), your skis or board would have an easier time staying on top because they wouldn't need to displace as much snow to float.