17. Arrived there before him. The orb
18. Captain Cook, might have arrived there before him. The orb
19. Other explorers found the Northwest Passage. The orb
20. Atlantic and Pacific oceans. The orb
21. This watery passage joins the Atlantic and Pacific oceans. The orb
22. Many of today's explorers. The orb
23. Many of today's explorers look to the skies. The orb
24. Others explore the deep oceans. The orb
25. You can also explore without leaving your room. The orb
your
26. You can explore with
mind. The orb
27. Some scientific discoveries are based on theories.
Konlor discovered the cause of tides. The orb