Let's revisit the idea of the floating plasticine. When we did this experiment we talked about PRESSURE and how changing the surface area of the plasticine's shape could effectively reduce the downward force of the plasticine's weight allowing the 'boat' to be buoyant in water, as well to hold a load.
To go a step further, see how DENSITY is connected to this idea in the following tutorial:
To go a step further, see how DENSITY is connected to this idea in the following tutorial:
Note that they use pounds instead of grams or Newtons. The idea is still the same so not to worry about converting the scale; however, if you need to know ....
1 pound = 454g = 4.5N)