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Ocean 3rd grade pt 2
Tide pools and ocean floor
Question | Answer |
---|---|
What is a tide pool? | hollow of rocks containing sea creatures when the tide goes out |
What is the ocean floor like? | looks very much like the earth"s surface |
What is sonar? | under water radar. Bounces sound waves off the ocean floor in order to measure the depth of the water |
How is an island made? | by an underwater volcano |
What is coral? | tiny invertebrates that take limestone from seawater to build reefs |
What is a reef? | islands made by invertebrates |
What is sediment? | matter that settles to the bottom of a liquid |