Katherine wants to investigate if the time of day a plant is watered affects the growth of the plant. She hypothesizes that a plant watered in the morning will grow faster than a plant watered at other times of the day.…
In this experiment, 8 plants will be tested. Each except one plant (which will be the control group) will receive a certain amount of water starting at 0 teaspoons of water. Each plant will receive 1 more teaspoon than the previous cup, so it would be increasing. For example, cup 4 will have 4 teaspoons of water and cup 3 would have 3. The data recorded will be the length the plant grows up to.…
The purpose of this experiment was to practice applying the use of the scientific method. One of the main steps in the scientific method is forming a hypothesis. Increasing fertilizer is expected to increase rate of growth and increase number of leaves.…
A student hypothesizes that green algae will grow fastest when exposed to blue light. To test this hypothesis, the student should design an experiment with which independent variable?…
1. If the room temperature for this experiment had been lower, the length of the resonating air column would have been shorter. The length of air column is directly proportional to temperature due to v=331msT273 .…
1) Identify the specific independent and dependent variables that will be involved in an experiment to test this hypothesis. Independent variables: The time of day the plants were watered (examples include: sunrise, noon, sunset) Dependent variables: The resulting height of each plant…
Null hypothesis (H0): There is no significant difference in height of Brackens from a light area and the height of Brackens from a dark area.…
What substance is not present in tube S2 for the production of the brown-colored substance?…
The dependent variable is the Brassica Rapa and it is depending on the temperature. Before the experiment took place, all plants were in 22 degrees Celsius for three weeks to grow to the preferred maturity. They were then taken out and pollinated. After pollination the plants were set in separate temperatures to mature for another two weeks. After the two weeks were over, the plants were taken out of their temperatures and soil to determine maturity and productivity. To do so, the plants were weighed, the length was measured, the pods were counted, and the amounts of mature seeds were counted as…
1. A major significance is identifiable between the control group and the treatment group with the F value at 5% level of significance. The p value of 0.005 is less than 0.05 indicating that the control group and the treatment group are indeed different. Based on this fact, the null hypothesis is to be rejected.…
light source for this variable was the closest to the plant out of all the trials, which means that the…
A student wanted to look at plant growth in five different soil samples. He planted the same type of seeds in identical containers and left them together in full sunlight. He gave each plant the same amount of water and charted the growth of each plant stem. What is the independent variable in this experiment?…
The experiment proposed by the winning group consisted of the class dividing into groups of two or three. Each group then had to fill a labeled cup of water with 100 mL of stream water. Groups then had to cut 1.5 X 1.5 cm square samples of each leaf species (Norway and Silver). The leaves being cut for samples were leaves that had been soaking in Chicago River water for two weeks prior to lab. Each specific sample was then labeled with a colored pin in order to distinguish the samples and then both samples were placed into the labeled cup of stream water. Finally, three amphipods were placed into the cup containing the two samples. The amphipods were then left in the cup for one week, after which the leaves were removed and bagged by the…
In completing the Tomato Plant experiment I had to apply the scientific method. I observed that my tomato plants were producing less fruit each year. I then questioned some of the elements that may have affected the tomato plants and caused them to bear fewer tomatoes being a deficiency in warmth, water, or nutrients. I then selected my hypotheses that the plants were in need of more nutrients. Following my hypothesis I developed my prediction which was that my plants would bear more tomatoes if I was to replace the old soil with new soil before planting. I then concluded, based off of the graph depicting the number of tomatoes per plant, that my hypothesis was supported because; my predication was accurate and the plants grew more tomatoes after I had replaced the soil.…
Purpose: to test cohesion and adhesion of distilled H2O, tap H2O, salt H2O, and soapy H2O…