How can rocks bob in the ocean? They are full of holes!
A volcano is under the sea. It shot out hot lava. The lava turned into pumice [puh-mess].
Pumice is like sponge made of rock. A big clump of floating pumice is called a raft.
READ MORE: Ocean currents are pushing a “raft” of pumice toward Australia’s Great Barrier Reef. Tiny holes in the pumice hold sea creatures. Scientists are worried about Australia’s coral. Will those creatures end up in the Great Barrier Reef? Will they be good for it? Scientists hope so. Jesus has charge of the ocean and all that is in it. Matthew 8:27 tells us that the disciples asked, “What sort of man is this, that even winds and sea obey Him?”