National Geographic Readers: Sea Turtles
National Geographic Readers: Weird Sea Creatures
National Geographic Readers: Dolphins
National Geographic Readers: Great Migrations Whales
National Geographic Readers: Night Sky
National Geographic Readers: Sharks! (Science Reader Level 2)
National Geographic Readers: Manatees
National Geographic Readers: In the Ocean (L1/Co-reader)
National Geographic Readers: Bees
National Geographic Readers: Swim Fish!: Explore the Coral Reef