Can you find a shipwreck on a Nautical Chart?
Nautical charts have special symbols.
These symbols can be used to locate many objects, like a shipwreck!
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Where is the deepest part of the ocean?
The deepest spot on Earth is the Marianas Trench - 35,840 feet deep.
That is almost 7 miles deep!
What are all the numbers on the chart?
Nautical charts show water depth.
Numbers on the chart are called soundings.
Soundings tell you how deep the water is.
If the water is 5 feet deep somewhere, there will be a number "5" on the chart.
Can you find the number 5 on the chart above?
Shallow water is colored BLUE . Deep water is WHITE .
What is the deepest sounding you can find in a BLUE area?
How about in a WHITE area?