scientific method

This is a step in the scientific method.

This is a step in the scientific method.

This is a step in the scientific method.

This is the correct answer. Intuition can play a role in inspiring scientific inquiry, but it is not a formal step in the scientific method.

This is a step in the scientific method.

The scientific method is about testing and refining, not proving.

This is the correct answer. Experimentation provides data to determine if the hypothesis is likely accurate or needs further refinement.

While discoveries can happen during experimentation, the primary purpose is to test hypotheses.

This is a later step in the scientific process, after analysis and conclusion.

This is incorrect. The scientific method emphasizes data and evidence, not personal opinions.

This is incorrect. Peer review is an important part of the scientific process, and it helps ensure objectivity.

This is the correct answer. The systematic approach helps reduce subjective interpretations and ensures a more objective analysis.

This is incorrect. The scientific method emphasizes consistent interpretation and verification of findings.

This is incorrect. The scientific method relies on testing and evaluation.

This is the correct answer. It involves hypothesis formation, experimentation, and analysis of results.

This is incorrect. The scientific method emphasizes evidence-based decision making.

This is incorrect. The scientific method requires more rigorous data collection and analysis.

This is incorrect. The scientific method emphasizes rigorous testing and evaluation before implementation.

This is the correct answer. The scientific method provides a framework for research and informed decision-making.

This is incorrect. Public input is crucial for effective environmental policy-making.

This is incorrect. The scientific method helps improve the likelihood of success, but it does not guarantee it.

Here's a possible experiment design:

Hypothesis: Runoff from nearby farms is contributing to increased algae growth in the river.

Experimental Setup:

1. Collect water samples: Take three water samples:

   • Sample 1: From the river upstream of the farms.
   • Sample 2: From the river downstream of the farms.
   • Sample 3: From a nearby farm drainage ditch.

2. Prepare test containers: Use identical glass jars or beakers (at least 3).

3. Fill containers with water samples: Fill each container with a water sample:

   • Container 1: Sample 1 (upstream river water).
   • Container 2: Sample 2 (downstream river water).
   • Container 3: Sample 3 (farm runoff).

4. Add nutrient solution (optional): To simulate fertilizer runoff, you can add a small amount of a nutrient solution (e.g., fertilizer diluted with water) to all three containers. This will enhance algae growth and make the results clearer.

5. Expose to sunlight: Place the containers in a sunny location for a week.

Data Collection:

• Observe and photograph: Take photos of the containers daily and record any changes in water clarity, algae growth, or other visible changes.
• Measure algae growth: After a week, use a microscope (if available) to count the number of algae cells per unit volume of water in each container. If a microscope is not available, estimate the amount of algae by visual comparison.

Expected Results:

• Hypothesis supported: If farm runoff is the cause of the algae bloom, you expect to see significantly more algae growth in the container with farm runoff (Sample 3) and possibly in the downstream river water (Sample 2) compared to the upstream river water (Sample 1).
• Hypothesis not supported: If there is no difference in algae growth between the containers, or if the most algae growth occurs in the upstream river water, it suggests that farm runoff is not the primary cause of the algae bloom.

Important Notes:

• This is a simplified experiment for illustration. For more rigorous results, consider using multiple replicates for each sample, controlling for variables like water temperature and light exposure, and using more sophisticated techniques to measure algae growth.
• This exercise emphasizes the principles of the scientific method, but remember, addressing real-world environmental problems requires careful planning, expertise, and often collaboration with experts.