Impact Craters Lab

Today, Madeira, Rose and I did the Impact Craters Lab. We dropped a pingpong ball into flour from heights of 2ft., 3ft., 4ft., 5ft., and 5ft. 7in. We noticed that the higher, the height, the deeper and wider the craters became. I calculated the GPE for each height and it turned out that the bigger the GPE the deeper and wider the craters. This makes sense because just before the ball hits the flour, it has the same kinetic energy as it had potential energy. With more KE from a higher height, the flour will move when the energy is transfered into it.

i don't know quite how this will help us on mission to mars, but I'm sure it will. It was interesting to see the direct correlation between the heights and the impacts. even from such a small height of 5ft. you could tell the difference from the 2ft. experiment.

Body Power Lab

On Monday, Lilly, Rose and I did the body power lab. In it, we calculated our resting heart rate, our working heart rate and our maximum heart rate. If you are working harder, you are working at a higher percentage of your maximum heart rate. If you are working at a higher %MHR you burn more calories. Lily and Rose are much smaller than me. They both burned more calories than me because they had higher heartbeats because they are smaller. We didn't have enough time to do much of the Lab, because the calculations took a while (I had to do them all).
This will be useful because on our mission, we are going to need to keep in shape because we are going into a "zero gravity" environment. Theoretically, it would take no effort at all to lift anything so we have to keep in shape using other methods.