Week 15
What did you learn this week? Today we learned what happens when you increase pressure in a syringe. We got to feel the pressure get tighter when you would keep your finger on the top and push the syringe in. It was harder to push when we had our fingers at the top of the syringe and pulled. We then got to put in a marshmallow and see how the pressure affected the marshmallow. When you pushed the air to make a smaller area with more pressure the marshmallow shrunk and if you opened the space up the marshmallow expanded. Which parts did you find clear and which were confusing? I found it clear as to why the marshmallow shrunk when we added pressure because the pressure pushed on the marshmallow and took the air out of it. I also found it clear as to why the marshmallow expanded. (The opposite reaction and reasoning as to why it shrunk). Something I found confusing is why the marshmallow came out sort of shrunk and wrinkled instead of how it was because everything we did to it we did t