Science By Millie B We started Learning about the human body. We learnt about your blood system, where you start the breathing system and where you can find you’re BPM (Beats per Minute). In the middle of your chest is your heart Heart Lungs Liver Large Intestine Small Intestine When you breathe in through your nose it goes round the back of your head/neck and into your heart which mixes it with blood and gets sent round your body. MS910220067[1].wav Your Blood contains 2 things = Food and oxygen. When you trap your finger in a door your circulation is stopped so your finger goes numb and/or gets pins and needles. Also you can get your finger to go Blue in more extreme circumstances. As our Last bit of the lesson we measured our BPM before and after exercise. Mine started at 72 BPM and went to 103 BPM. You can easily try it by putting your finger on your neck, finding you pulse and counting how many beats you have in 1 minute. Retry this procedure after some exercise, I recommend 2 minutes of: http://www.youtube.com/watch?v=AKlid_e-loE Thanks for reading this and I hope you try my experiment!