Across
- 1. The Astrolabe was invented by the ______.
- 5. The Europeans would need better ____ if they wanted to find their way to the Spice Islands
- 6. Arab traders had been sailing across the ocean for ____.
- 7. To get to the Spice Islands, Europeans would need a sea route to ---.
Down
- 2. What invention did the Arab sailors invent?
- 3. What invention was later used to determine a ship's latitude?
- 4. What navigation tool did the Chinese invent?
- 6. Who invented the magnetic compass?