'After floating on the surface of the ocean for several weeks, this volcanic rock eventually sinks to the bottom'
pumice
IT FLOATS!: After floating on the surface of the ocean for several weeks, this volcanic rock eventually sinks to the bottom
After floating on the surface of the ocean for several weeks, this volcanic rock eventually sinks to the bottom
After floating on the surface of the ocean for several weeks, this volcanic rock eventually sinks to the bottom
IT FLOATS!
pumice
IT FLOATS!