Photosynthesis Lab Hypothesis

Wisconsin Fast Plants are known to be great educational tools for classroom experiments. They germinate quickly and are easy to take care of. These plants germinate after 1 or two days and have a life span of about 30 to 40 days. (Marin and Terrana, 2004).

However, this is inconsistent with what we have been taught and with what is written in the textbook. Since the textbook is a more reliable source of information, I must conclude that the reason for this difference in results may be attributed to error on the part of the students conducting the experiment.

According to the scientific method, I should create a new experiment by making another hypothesis.

Figure 1: . In 2010 A cartoon by Piraro about how fast food effect pigeons which representing the people who addicted on fast food.

Photosynthesis Shelly Sterling Professor Soto Bio Lab 111L Shelly Sterling Bio Lab Report 12/3/2017 Photosynthesis Lab

However, the results of this experiment may not have been as accurate or precise as they

1. What did Joseph Priestley find in 1780? In 1780, Joseph Priestley constructed that plants could "restore air which has been injured by the burning of candles." 2.

A. In the textbook they described the chemical properties of carbon dioxide as a gas that does not burn, extinguishes the flame and does not support combustion. In my tests, it matched the definition the flame extinguished immediately. In the textbook, they described the chemical properties of oxygen as a gas that is essential for burning and burns thing more vigorously. My tests matched the definition as we exposed the burning splint to the oxygen the flame got brighter and higher, as we exposed the glowing splint the flame reignited.

Introduction The objective of this lab was to determine if light color had an effect on photosynthesis rates in the aquatic plant Elodea. Other studies have taken place on different plants such as a study in 2013 the effects of red, blue, white, and far-red LEDs were tested on Wasabia Japonica seedlings. In that study it was found that a mixture of red and blue light yielded the highest rate of growth (Kim & You, 2013). For this lab it was hypothesized that violet and blue light (400-500 nm) would yield the highest growth rate, while green and orange would yield the lowest rate.

This lab was called photosynthesis: understanding photosynthesis. It is a highly complex process that needs to be broken down in many steps to understand how it works. This lab covers the big components in photosynthesis including carbon dioxide intake, light consumption, and varying pigmentation.

The beauty of science is the fact that it is not ever a complete certainty. There are times when an experiment might yield results that conflict with prior results in past experiments, which then forces the researcher to try to account for the possibility of new findings that lay outside the range of prior discourse. This is the case here, where a variation of the Stroop test was conducted, with atypical results. After coming to these different conclusions, it was the work of the researcher to dive into the research and try to understand what could have happened to provide such different conclusions. In this case, there might have been embedded cues that would have lead to a greater interference of the Stroop effect.

My hypothesis was correct. To measure the amount of carbon dioxide or CO2 in an exhaled breath, you need to use BTB solution and sodium hydroxide. In our procedure, the BTB reacted to the carbon dioxide and the sodium hydroxide reverses the reaction which allowed us to measure how much carbon dioxide is in our exhaled breath. As seen in the data, it took 5 drops of sodium hydroxide to get the BTB solution that had carbon dioxide blew into it to be the same color of the controlled BTB solution.

INTRODUCTION Typically, it can be said that life’s “powerhouse” is the sun. The energy from the sun is converted into oxygen and sugars from a process called photosynthesis which only occurs in photosynthetic organisms like plants. The sugars and oxygen produced by these organisms are then used by “consumers” for their chemical energy source. From this it can be assumed that the faster photosynthesis can happen, the more energy develops for living organisms to utilize.

Write a discussion of error summarizing 2 sources of error, why are your results and the other group different?

It took us longer than it should have to come up with a factor to test against the rate of photosynthesis. Because of this setback, we didn’t plan our experiment and instead just went through it and tried to fill in empty spots later on. This lead to confusion and incorrect facts regarding our experiment. We could improve the sources of error by taking the time to think things through before actually doing them. This way, we could all agree on what to do and take our time to make sure things are how they’re supposed to be.