In this experiment, scientists, Emily Yau and Mona Howell, conducted an experiment that tested how acidity and radiation affects germination of radish seeds. We had hypothesized the seeds that microwave for 5, 10, and some of the 15 second seeds will grow. The radish seeds in the 1 and 2 teaspoons will sprout. We should accept our hypothesis because in the most part, it was correct. Although most of our data supports our hypothesis, some of our data contradicts our hypothesis. For the radiation experiment, most of the trials support our hypothesis because when we microwaved the seeds 30-60 seconds, barely any of the radish seeds grew. On the contrary, in trial two, when we microwaved them for 30-60 seconds, most of the seeds grew. For the acidity …show more content…
One thing that was definitely concluded from this experiment was that lemon juice, with such a strong ph, does not help radish seeds to grow/germinate. Since there were only three trials conducted in both the acidity and radiation experiment, the data and results cannot be completely reliable unless there were more trials to be conducted, especially in order to attempt to disregard the outlier in trial two from the radiation experiment. In the future, we would conduct this experiment in a different way by doing multiple trials on the same day and in the same room hanging it up on the same side window to try to get the results as close as we can. By making these changes for the near future, the temperature, the amount of sunlight
1. Describe the study design (is it correlational, experimental, survey research, etc.). The study is Level 3, experimental. The participants are within subject design experiences because since the subjects were divided into two groups by gender.
1. Do you agree with Brooks claim about Boys and Girls reading differently? I do agree that boys and girls read differently, the brain processes things differently. Boys want to read something that will hold their interest and girls will read books that are more desirable to them.
How would you feel if you had to be worrying about the Nazi´s taking you away for being Jewish? Or living in a Nazi controlled area? In the book Black Radishes by Susan Lynn Meyer, Gustave lived in Paris with his parents and hung out with his cousins/friends Marcel and Jean-Paul everyday until the Nazis came and Gustave and his parents moved to the unoccupied zone where he worries about his family still in the occupied zone. At the end, his family finally moves to the United States fleeing from Nazi-controlled Paris. The author uses description, tone, and revealing actions to demonstrate the goal of setting up the problem.
The rate of respiration of the germinating seeds can be measured by using the CO2 Gas Sensor. When connected to the data-collection interface, accurate rate of CO2 produced can be monitored. Controlled Variable Number of seeds Size of seeds Specie of
First, it was hypothesized that test tube "A", the control, would not show any red concentration, test tube "B" which contains supernatant II would show the most red concentration and test tube "C" which contains sediment II would only show a little red concentration. The second hypothesis states that the raw corn kernels would have mitochondrial activity while the boiled corn kernels would not. The last hypothesis interprets that the "gunk" and sediment I will both contain starch granules. It was only expected to find mitochondrial activity in Supernatant II. Unfortunately, after performing this experiment, we were not able to support this hypothesis and come up with a conclusion.
Additionally, it was difficult obtaining a piece of rhubarb that was thin and particularly red, therefore the effect could not be best observed in the cells. Part B: Design your own experiment Parts of this practical were taken and slightly altered from the following link http://www.markedbyteachers.com/gcse/science/investigate-the-effect-of-surface-area-on-osmosis-in-potato-tissue.html Aim: To observe the effect different surface area: volume ratios have on osmosis in potato tissue. Hypothesis: If the potato has a larger surface area: volume ratio, the quicker osmosis will take place and the larger the mass will be at the end of the experiment, therefore the difference in mass of the potatoes from the start of the experiment to the end of the experiment will be larger. Additionally, the potato pieces left in a saltwater solution will decrease in mass, whereas the pieces left in water will increase in mass.
Hypothesis: If four lights (UV Light, LED Light, Infrared Light, and Blue Light) are used to perform photosynthesis on a spinach leaf, then the spinach will respond most to the blue light and perform a more efficient photosynthetic process.
As stated in the background of the lab, "seeds are considered to be in a period of dormancy, where they metabolize stored energy at a very slow rate while the seed is still considered alive" (Hands On Labs). During germination, the developing plant embryo uses the stored food supply in the seed for cellular energy and growth. Thus, cellular respiration is taking place as the seeds grow. Without water the seeds cannot begin germinating thus the seeds in test tube N did not undergo photosynthesis(Hands On Labs). B. Were the seeds in the “G” tube undergoing both photosynthesis and respiration, only photosynthesis, or only respiration?
We then obsevered the two slides for number of cells as well as for food vacuoles inside a cell using a microscope at times of 0,5,10,20, and 30 minutes. Results The following graphs show the results of this experiment. The tetrahymena sample that was introduced to concentrated tobacco had a lower cell/vacuole ratio than the tetrahymena sample that was not exposed to
Abstract: The purpose of this experiment was to determine whether the amount of topsoil would influence the growth of radish plants. It was hypothesized that if the amount of topsoil increased by 50% would increase because topsoil contains the essential nutrients which are required for proper plant growth. The principle findings indicated that a medium amount of topsoil is ideal for plant growth as the radish plant potted in 50 ml of topsoil experienced the most growth in comparison to the radish plants potted either in 25 ml or 200 ml of topsoil. Introduction: A healthy layer of topsoil comprises of a mixture of clay, sand, silt, and humus that supply the plants with vital nutrients, such as nitrogen, phosphorus, potassium and other necessary
3. In this experiment, the percent yield was 90%. This number implies that there was little error in this experiment. However, this result could have been caused by certain external factors.
Gonad Experiment (from the first page’s diagram) Hypothesis: Exposure to atrazine during larval development causes abnormalities in the reproductive tissues of male frogs. (taken from diagram) Independent Variable: Atrazine exposure levels in parts per billion Levels: 0,0,1, and 25 ppb Dependent Variable: percentage of male frogs with gonadal abnormalities Control Group: Male African Clawed Frogs exposed to 0.0 ppb of atrazine Constants: same type of tadpoles, same tank environment (excluding atrazine) (ie. Temperature, light exposure etc.), same amount of tadpoles in each tank Vocal Structures
1. Coriander Seeds: Whole coriander seeds add bursts of citrusy, herbal flavor to your food. Coriander seeds are popular the world over and a staple in many sauces and marinades. Use a mortar and pestle or spice mill to create coriander ground or add the whole seeds to your sauce for a bolder flavor. For an Indian-style curry, simmer cream, stewed tomatoes, coriander seeds, curry powder, and garam masala with marinated chicken and serve over steamed rice.
Introduction: In this task I will be researching the effect that acid rain has on the rate of plant growth. Acid rain is any type of precipitation with a high pH, with high levels of nitric acids. The reason why I had chosen this topic was because acid rain seems to have a great effect on the effect of plant growth, and plants play a very important role in our ecosystem. Acid rain is a major problem in our environment when we are not able to neutralize the acidity.
Lettuce is considered a spring or cool season plant due to its liking of cooler temperatures. Lettuce germinates best at temperatures ranging from 40°F to 80°F. It typically germinates faster in soils that are at temperatures of 70°F. The germination of lettuce happens rather quickly taking two to seven days. On average, the germination process occurs in about one week at a temperature of 50°F.