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Earth-Space Science Week 4: The Mighty Ocean

Across
Jacques Cousteau helped to invent an aqualung that we call ___________ equipment.
This is the fuel that powers the machines of our world-cars, factories, planes, etc.
Where the continental shelf ends and where the oceans drop almost straight down, in some places more than 10,000 feet deep
Down
In the film "The Abyss," a special undersea ________ goes where humans can't.
We know that the hydrosphere keeps our Earth's ___________ steady.