give examples of four objects which need the properties below to work - has a low density ??????

Answer 1

A tub toy must be low in density in order for it to float in the water. A buoy, which is intended to float on a body of water, must be low in density for the same reason. Similarly, a child's "water wings" also require a low density to work properly as floatation devices. A blimp must be sufficiently low in density for the helium inside it to keep it afloat.

It's important to note the difference between being low in density and just being low in weight. A blimp, for example, may actually be quite heavy, compared to what a human can lift, but it's not very dense at all. Density tends to be important when buoyancy is being considered.

Answer 2

Carbon fiber; Helium ballons; pillows; packing peanuts or bubble wrap.

Answer 3

toothbrush,toothpaste,mouthwash,floss

Answer 4

bird bones