Ecosystems

Why is the tip of the iceberg the only part that is visible?
Answered by Animal Planet
  • Animal Planet

    Animal Planet

  1. An iceberg is less dense than the saltwater it floats in. This makes the iceberg more buoyant. The water that puts force on the iceberg from underneath causes part of it to float above water. This upward force is called "buoyancy." Only 1/6 to 1/9 of the iceberg is visible above water [source: Stone]. The size of the tip varies because density varies from iceberg to iceberg. The shape of the iceberg affects its buoyancy as well.

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