What lurks beneath the shimmering surface of the world’s oceans? What mysteries has science revealed from the study of marine life and the ecosystems that support aquatic plants and animals? Your students will discover the answers to some of the most interesting questions in this All About Oceans Scavenger Hunt. The websites included in the search are filled with facts that will get your students reading for information and practicing their online search skills.

Here’s how it works:

  • Download the All About Oceans Printable and distribute it to your students. Students can work individually or in pairs.
  • Send your students to this link to get started.
  • Explain to your class that they will find the answer to each question at the link provided, but they will need to read carefully.

All about oceans answer key: 

  1. The three other ocean zones are: Sunlit Zone, Twilight Zone and Dark Zone.
  2. Ninety percent of deep-sea marine life is bioluminescent.
  3. An apex predator is a predator residing at the top of a food chain upon which no other creatures prey.
  4. Echolocation is used for foraging or finding food.
  5. There is only one global ocean! The vast body of salt water that covers 71 percent of Earth is divided into five names and boundaries: Arctic, Atlantic, Indian, Pacific and Southern.
  6. The ocean is blue because it reflects blue light rays from the sun.
  7. Jellyfish are not scaly, bony or brainy. They don’t have bones or hearts either!
  8. Zooxanthellae make corals so colorful.
  9. Jacques Cousteau invented the Aqua-Lung, the first self-contained underwater breathing apparatus (SCUBA).
  10. It is nicknamed the ghost octopus or ghostapus!

Love this activity? Try our online scavenger hunts for students to learn about women’s suffrage, U.S. Presidents, and Earth Day.

All About Oceans