So that they float.
The earliest boats were log rafts. The first boats were hollow tree trunks propelled by poles, and then by paddles and oars.
Hollowware is serving dishes and accessies which are hollow, or concave.... dishes and bowls. Silver hollowware is hollowware made of silver.
A type of weeds used to build boats in the past were rushes. These look like tiny sticks of bamboo, are hollow, and they float. They are not suitable for large boats, but can be used to make rafts and very small boats.
There are sail boats, ugly boats, pretty boats, speed boats, fun boats, unfun boats, amazingness boats! i luv boats! i own a boat!!there are sail boats row boats speed boats paddle boats
Joanna Ruane has written: 'Boats, boats, boats' 'Boats, Boats, Boats'
A prism that is hollow.
That tree is hollow. Do you have a hollow leg? I'm going to hollow out a hole.
boats
bananasSome cultures would hollow out and shape a whole tree trunk. Many other cultures would secure wooden boards to a wooden frame then cover the hull with pitch, a natural tar.
hollow
no its not hollow
hollow