Question

Complete the steps of the scientific method (Question, Hypothesis, IV, DV, Control Variables, and Conclusion) for testing the effectiveness of brand A plastic wrap in keeping food from drying out in a freezer. There are many different types of plastic wraps that can be used for different purposes. One use of a plastic wrap is to keep food from drying out in a freezer. The degree of effectiveness of this type of wrap is based on how air tight it is. You decide to test the effectiveness of this type of brand A plastic wrap. Because germinating seeds require air to grow, sprouts can be used to test the amount of air that moves through the plastic.

How effective is brand A plastic wrap in keeping food from drying out in a freezer?

Answer 1

To test the effectiveness of brand A plastic wrap, we would follow the scientific method steps: posing a question, formulating a hypothesis, determining independent (type of plastic wrap) and dependent (food dryness) variables, identifying control variables (like freezer temperature), and drawing a conclusion after analysis.

Step-by-step explanation:

To test the effectiveness of brand A plastic wrap in keeping food from drying out in a freezer, we can use the following steps of the scientific method:

1. Question: How effective is brand A plastic wrap in keeping food from drying out in a freezer?
2. Hypothesis: Brand A plastic wrap is more effective than other brands at keeping food from drying out in the freezer because it is more air-tight.
3. Independent Variable (IV): Type of plastic wrap (brand A vs. other brands).
4. Dependent Variable (DV): Degree of food dryness after being stored in the freezer.
5. Control Variables: Type of food being wrapped, temperature of the freezer, duration of storage, size of food portions, and wrapping technique.
6. Conclusion: After conducting experiments, analyze the data to conclude whether brand A plastic wrap is more effective at preventing freezer burn compared to other brands.

Comparing with a control group using no plastic wrap or a different brand can provide a basis for the comparison in effectiveness. Furthermore, it is crucial to experiment multiple times or with multiple samples to ensure the reliability of the results.

Wrapping food tightly before freezing minimizes freezer burn because it reduces exposure to air, which leads to dehydration and oxidation of the food. An experiment similar to those testing windshield treatments for repelling water or exploring the effects of containers on rolling down an inclined plane may serve as a reference for designing controlled experiments.