Today we did science experiments in class. I did lung capacity. It shows how much air you have in your lungs. I was last in our class but I was going to be best.
First you fill up a 2 litre bottle and fill a basin up half way, put the bottle in upside down in the bottle get a straw put the bent part of the straw into the bottle,and blow into the bottle.
😜 By John😜