Getting Some Exercise in 2nd and 3rd class

2nd and 3rd class have been looking at the effects exercise has on our body. We know that exercise is good for us and it helps to keep us healthy, but how?

Firstly we measured our heart rate when we were sitting down and relaxed before exercising. We noted how many times our hearts took a beat in one minute.

After this we did some exercises like jumping jacks for a minute and then we measured our heart rates again.

Everyone found that the result was that their hearts were beating faster. Lots of the children also noticed that their breathing was quicker and their body temperature had increased too. The discussions that followed lead us to the conclusion that when we exercise, our hearts beat faster and our lungs work harder. This is because when we exercise our blood flows faster and we breath quicker and the result of this is that our lungs and our hearts get exercise. Just like the muscles in our arms and legs, our heart is a muscle too and it needs exercise! When it pumps faster, we know its getting some exercise and we need to make sure it gets exercise every day!