Jan Baptist Van Helmont Willow Tree

527 Words3 Pages
In this essay i will be going over the three experiments, jan baptist van helmont willow tree , joseph priestley mint in jar , and lastly jan ingenhousz elodea and bubbles. they all show the findings of photosynthesis. Photosynthesis is the function in the plants on which they make food with. The plant also get energy from this process and they make oxygen for us to breath. The basic formula for photosynthesis is carbon dioxide, water then light to make sugar and oxygen. All plants are autotrophs which is a organism that use sunlight to make their own chemical energy. On the other hand we are heterotrophs witch means we get our energy from food. Witch means we need the plant and witch means they need photosynthesis and that…show more content…
experiment willow tree he had a hypothesis of the prevailing theory at the time that plants ate soil. his independent variable was time , his dependent variable was weight of the tree and soil he didn't have a controlled variable. he ended up proving his hypothesis wrong by finding out that plants drink water and not eat soil. he had some flaws in the experiment like only testing it once you always want to test it more than once to make sure you didn't miss something. Fun fact he done this experiment under house arrest. Joseph priestley and his experiment mint in jar he had a hypothesis of that all plant made oxygen . his independent variable was how much oxygen dependent variable was oxygen and controlled was the sprig of mint in the jar. he proved his hypothesis right that plants make oxygen. flaws in the experiment the usage of animals. now days that would be animal cruelty. but on the science side the others are the opening the jar to put and light the candle that would allow oxygen to get inside of the jar so he couldn't really prove if it was the plant or just oxygen in the jar. Jan ingenhousz and his experiment elodea and bubbles he had a hypothesis that plants

    More about Jan Baptist Van Helmont Willow Tree

      Open Document