1. Min: 0 fathoms (0 feet) at Cape May (0 miles). Max: 3125 fathoms (18,750 feet) at 1300 miles.
2. The maximum ocean depth between New Jersey and Portugal is 18,750 feet, measured at 1300 miles from Cape May.
3. The depth at 2,725 miles is missing. Estimate: 2800 fathoms (16,800 feet). Reasoning: The depth at 2700 miles is 2700 fathoms and at 2800 miles is 2800 fathoms; the value at 2725 miles is interpolated as approximately 2800 fathoms, assuming a linear trend or slight increase.
4. Use different scales for vertical and horizontal axes. The horizontal axis (distance) spans over 3500 miles, while the vertical axis (depth) spans about 18,750 feet. Using the same scale would make the graph extremely wide and compress the depth variations, making them hard to see. Different scales allow clear visualization of both distance and depth changes.
5. The point representing an island is at 0 miles (Cape May), as it has a depth of 0 fathoms, indicating land level.
6. The Mid-Atlantic Ridge is located at approximately 1300 miles from Cape May, where the depth is shallowest (3125 fathoms) compared to surrounding areas.
7. The Mariana Trench in the South Pacific is deeper than the deepest point between New Jersey and Portugal. The deepest point in the table is 3125 fathoms (18,750 feet), while the Mariana Trench is over 36,000 feet deep.
Parent Tip: Review the logic above to help your child master the concept of mapping the ocean floor worksheet.
