My informative speech about...

Today I have been writing my informative speech about how coral reefs grow.It is about how corals grow,eat and what happens when they die.LINK!!!!!:https://docs.google.com/presentation/d/1dX0VUQsBh7Tgye-F3u27BP1PrA8mEh7LSR53t1W30k8/edit#slide=id.g3d46e64554_0_0
I have learnt that coral and corals can both be plurals.Miss Flowers told me that.
I also recrafted my writing and edited it to make it make more sense and to take out those 's' because Miss Flowers said I should.this is what my recrafted and edited version looked like↓