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Answer (1)
[tex] \huge \color{cyan} \text{• Answer ☕ }[/tex]5. Jessica's Experiment on Kitchen Cleanersa. Independent Variable (IV): The type of cleaner used (Lysol, Clorox, Pinesol, water)b. Dependent Variable (DV): The effectiveness of the cleaner, which could be measured by how well it cleans the grape juice off the counter.c. Control: Using just water (assuming this serves as a baseline comparison).d. Constants: Amount of grape juice (5 milliliters), the method of cleaning (using one paper towel), and the type of counter.6. Evan's Experiment on Toothpastea. Independent Variable (IV): The type of toothpaste used (Crest, Colgate, Close-up, water)b. Dependent Variable (DV): The amount of plaque remaining after brushing, as determined by a plaque test.c. Control: Using water as a baseline comparison for brushing without any toothpaste.d. Constants: The frequency of brushing (once daily), the time spent brushing, and the method of assessment (plaque test).7. Harrison's Experiment on Soil Typesa. Independent Variable (IV): The type of soil used (potting soil, clay, sand, soil from the yard)b. Dependent Variable (DV): Growth indicators of the roses, such as height and the number of leaves after one week.c. Control: There is no explicit control mentioned; the experiment might use one of the soil types as a baseline, but it is not clear from the description.d. Constants: Type of plant (roses), duration of growth (one week), amount of sunlight, and watering schedule.8. Emily's Experiment on Battery Lifea. Independent Variable (IV): The brand of battery used (Duracell, Energizer, Kroger brand, EverReady)b. Dependent Variable (DV): The duration each battery lasts, recorded by the time at which the clock stops.c. Control: There is no explicit control; however, you could consider using a known standard battery for a control if mentioned.d. Constants: The device used (clock), usage conditions (e.g., same clock model), and the method of measuring battery life (time until the clock stops).[tex].[/tex]
