in this exercise you will read the following scenario and identify the parts of the scientific method in…

in this exercise you will read the following scenario and identify the parts of the scientific method in it.\nmaggies plant experiment\nmaggie read that some plants grow better if the soil is acidic. she cant believe that a plant can grow when exposed to acid. maggie decides to test if the plants she has will grow better when acid is added to the soil. she puts potting soil in two planting containers and transplants two of her geraniums that seem about the same size into the pots. she puts the pots in the same location so that they both get the same sunlight each day, are at the same temperature and she makes sure they get the same amount of water. however, maggie puts a tablespoon of vinegar in the water she gives to one of the plants. she measures the growth of the plants every week for five weeks and records the results in a data table below:\n| week | height of plants in container with vinegar (cm) | height of plants in container without vinegar (cm) |\n| ---- | ---- | ---- |\n| 1 | 10.0 | 10.0 |\n| 2 | 12.4 | 11.5 |\n| 3 | 14.8 | 13.0 |\n| 4 | 18.0 | 15.7 |\n| 5 | 21.4 | 17.8 |\n1. hypothesis: \n2. dependent variable: \n3. independent variable: \n4. constants: \n5. control group: \n6. experimental group: \ndonnas pendulum experiment\nin this exercise you will read the following scenario and identify the parts of the scientific method in it.\ndonna has observed that her father can control the speed of their grandfather clock by adjusting the height of the weight on the end of the pendulum. donna thinks that the pendulum will move faster when the weight is lowered, and wants to test her idea. donna gets a stopwatch and measures the time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position. donna begins to move the pendulum up by 1 cm and continues to measure the time for twenty swings of the pendulum. donna records her data.\n| position | time(sec) |\n| ---- | ---- |\n| 1 | 23.23 |\n| 2 | 21.56 |\n| 3 | 20.33 |\n| 4 | 19.00 |\n| 5 | 18.02 |\n1. hypothesis: \n2. dependent variable: \n3. independent variable: \n4. constants: \n5. control group: \n6. experimental group:

in this exercise you will read the following scenario and identify the parts of the scientific method in it.\nmaggies plant experiment\nmaggie read that some plants grow better if the soil is acidic. she cant believe that a plant can grow when exposed to acid. maggie decides to test if the plants she has will grow better when acid is added to the soil. she puts potting soil in two planting containers and transplants two of her geraniums that seem about the same size into the pots. she puts the pots in the same location so that they both get the same sunlight each day, are at the same temperature and she makes sure they get the same amount of water. however, maggie puts a tablespoon of vinegar in the water she gives to one of the plants. she measures the growth of the plants every week for five weeks and records the results in a data table below:\n| week | height of plants in container with vinegar (cm) | height of plants in container without vinegar (cm) |\n| ---- | ---- | ---- |\n| 1 | 10.0 | 10.0 |\n| 2 | 12.4 | 11.5 |\n| 3 | 14.8 | 13.0 |\n| 4 | 18.0 | 15.7 |\n| 5 | 21.4 | 17.8 |\n1. hypothesis: \n2. dependent variable: \n3. independent variable: \n4. constants: \n5. control group: \n6. experimental group: \ndonnas pendulum experiment\nin this exercise you will read the following scenario and identify the parts of the scientific method in it.\ndonna has observed that her father can control the speed of their grandfather clock by adjusting the height of the weight on the end of the pendulum. donna thinks that the pendulum will move faster when the weight is lowered, and wants to test her idea. donna gets a stopwatch and measures the time it takes for the pendulum to swing twenty times when the weight is moved to its lowest position. donna begins to move the pendulum up by 1 cm and continues to measure the time for twenty swings of the pendulum. donna records her data.\n| position | time(sec) |\n| ---- | ---- |\n| 1 | 23.23 |\n| 2 | 21.56 |\n| 3 | 20.33 |\n| 4 | 19.00 |\n| 5 | 18.02 |\n1. hypothesis: \n2. dependent variable: \n3. independent variable: \n4. constants: \n5. control group: \n6. experimental group:

Answer

Brief Explanations:

  1. Maggie's Plant Experiment:
    • Hypothesis: Maggie believes plants will grow better when acid (vinegar) is added to the soil.
    • Dependent Variable: The height of the plants, as it is what is being measured and is expected to change based on the presence of acid.
    • Independent Variable: The presence or absence of vinegar (acid) in the soil - water mixture given to the plants.
    • Constants: The type of potting soil, the location (same sunlight, temperature), the amount of water, and the type of plants (geraniums).
    • Control Group: The plants in the container without vinegar, as it is the group not receiving the treatment (acid).
    • Experimental Group: The plants in the container with vinegar, as it is the group receiving the treatment (acid).
  2. Donna's Pendulum Experiment:
    • Hypothesis: Donna thinks the pendulum will move faster when the weight is lowered.
    • Dependent Variable: The time it takes for the pendulum to swing twenty - times, as it is what is being measured and is expected to change with the height of the weight.
    • Independent Variable: The height of the weight on the end of the pendulum, as it is what is being changed.
    • Constants: The pendulum itself, the number of swings (twenty), the method of measurement (using a stopwatch).
    • Control Group: There isn't a traditional control group in the strict sense here as there is no non - manipulated comparison, but if we consider the initial state before any height changes as a reference, that could be seen as a baseline.
    • Experimental Group: The pendulum with the weight at different heights as it is the group where the independent variable is being manipulated.

Answer:

Maggie's Plant Experiment

  1. Hypothesis: Plants will grow better when acid (vinegar) is added to the soil.
  2. Dependent Variable: Height of the plants.
  3. Independent Variable: Presence of vinegar in the soil - water mixture.
  4. Constants: Type of potting soil, location (sunlight, temperature), amount of water, type of plants.
  5. Control Group: Plants in container without vinegar.
  6. Experimental Group: Plants in container with vinegar.

Donna's Pendulum Experiment

  1. Hypothesis: The pendulum will move faster when the weight is lowered.
  2. Dependent Variable: Time for the pendulum to swing twenty times.
  3. Independent Variable: Height of the weight on the pendulum.
  4. Constants: Pendulum, number of swings, measurement method.
  5. Control Group: Initial state of the pendulum before height changes (loosely).
  6. Experimental Group: Pendulum with weight at different heights.