Ive been wanting to join a swimming team but I really dont know too much about swimming, can you help? 
Swimming really is a skill.  By a simple definition, swimming is propelling oneself through the water.  I like to swim myself.  How about you?
I love to swim, I do it every weekend. Do you like swimming in deep water or do you just do it it shallow pools? 
I like to swim in both deep and shallow waters.  Deep waters challenge my strength; but in the shallow waters I like to hold my breath.  Amazingly, humans can hold their breath and swim within just a few weeks of birth!
Wow I never knew that! fascinating, Say whats the world record for a person holding their breath anyways? 
I really don't know.  I am sure it is quite an impressive record though.  Considering that swimming is consistently among the top public recreations around the world, and with swimming lessons part of educational curricula, I would imagine some are quite skilled.
Thats true, I even think that it might be really difficult but I seen people even win a nice world record plaque for such an achievement, Any other swimming facts I should know? 
Just a fun fact: higher levels of body fat make us more buoyant!  So, I personally am all good!