I've never had anyone explain so well *why* water expands as a solid. That actually makes sense now. Thanks Sea :)

when you decide near the end of your last year of schooling you want to do marine biology cause you found your passion but haven't done a bio subject in 3 years so you gotta catch up before uni starts

Thank you so much for doing this series, I'm an A level student and I want to be a marine biologist. These next couple months I wanted to be able to go out and go to some training days and stuff, but with everything that's going on, that isn't possible, so these videos are really helpful.

This is so helpful because when I grow up I will be a marine biologist!

I never thought about ice being less dense than liquid water and that's why it floats

im in gr 9 and i am learning all of this before grade 10 to be prepared for my future and this is really helpful to me thank you so much for making such videos available to young minds who love this subject

I'm not a marine biologist student I'm just autistic

You are an amazing teacher, so engaging, and I love how your passion for this subject shines through!!!

THIS IS SO COOL THANK YOU. BUT MY FRIENDS NOW THINK IM CRAZY

I want to be a marine biologist, I’m so excited!!

This is incredible work guys! keep up the good work !

This is awesome. Thank you!

thank you

this is awesome

Wouldn't the dissolved CO2 be much lower around kelp/seafrass/algae growths? And if that's true, then shellfish might be safe from lowered pH in those biomes?

Awesome educational videos, but channel seems dead... Please come baaaaaaack

gotta go through the boring mathmatical stuff in life before the exciting stuff (not being offensive to anyone who thinks this is interesting)