Take the quiz to test your knowledge on underwater dive signs - the way that divers communicate underwater. Then have a look at some of the other activities to see how you can improve your coral knowledge or teach a full lesson about this topic.

Further ideas

To learn more about diving and dive signs, why not explore our Dive Signs Game or try our Animal Dive Signs Game.

To develop learning further try some of the full lessons on Coral Oceans. There are lessons for all ages 7 to 16. Science learning is covered with units for Coral Oceans 7-11, Coral Oceans 11-14 and Coral Oceans 14-16 units of work. Older students, can also benefit from our specialised Coral Oceans Geography 14-16 unit of work.

Safety guidance

• If you are posting work on social media, this should be done via a parent, guardian or school account for children under the age of 13. Children over the age of 13 should still be supervised by an adult. Check out the Thinkuknow website for more guidance on online safety.