Cause / Effect

TM This… Caused… Led To… Box-frame . Makes Sense Strategies © 2007 Edwin Ellis, All Rights Reserved Published by Makes Sense Strategies, LLC, Lillian, AL www.MakesSenseStrategies.com © 2007 Edwin Ellis, All Rights Reserved www.MakesSenseStrategies.com MENU sample Name: Date:

Discovery of Photosynthesis Is about …

how the experiments of Van Helmont, Priestley, and Ingenhousz reveal that in the presence of light, plants transform C2O and H2O into carbohydrates and release O2. This Caused the… Which led to … Van Helmont John Priestly Jan Ingenhousz

experiment experiment experiment

· Led to the discovery of the · Led to the discovery of the · Led to the discovery that “hydrate,” or water portion of oxygen portion of the plants need light to produce the carbohydrate produced photosynthesis equation oxygen by photosynthesis · Placed a lit candle inside a jar, · Performed Priestly’s · Created and experiment to it burned out. Then, he place a experiment and discovered find out if plants grew by mint leaf inside the jar and that the candle only remained taking material out of the soil the candle remained lit lighted in the presence of – massed dry soil and a small because of the production of light seed, after five years the oxygen by the leaf mass of the soil was the sameèconcluded that the mass of the plant gained came from the water, did not realize air changed it too

So what? What is important to understand about this? Photosynthesis is a series of reactions that uses energy from the sun to convert water and carbon dioxide into sugars and oxygen