Bubble holes are commonly referred to as "voids" or "air pockets." In various contexts, such as in materials science or geology, they can also be called "cavities" or "bubbles." These terms describe the spaces or openings that form when gas or liquid is trapped within a solid or semi-solid material during its formation or processing.
Pumice is such a rock.
a bubble has a stone with holes at the bottom so no sea monkeys can get in
The bubble.
The bubble in the egg is called an air sac, and helps prevent the egg from drying out (too quickly).
No re-tread tyres can also bubble
The holes on your sneakers are called 'eyes'
They are called "black holes".
holes
Holes.
I do not know if they have a musical name but they are commonly just called Recorder Holes.
1848 bubble gum was called Blibber Blubber
The Meniscus is the name for bubble in the metric system