Do you already know what is a coral reef?
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
This short video will help your kids to know about this planet while performing a DIY activity.
#kidsvideos #coralreef #savetheworld
