Question

Which step in a scientific investigation would a scientist usually do before she performs an

expenment?​

Answer 1

Develop a hypothesis

Step-by-step explanation:

Scientific investigations usually begin with observations these are typically something that would catch the researcher’s attention.

1. for example, noticing that all the animals along a stream or water source are ill .

2. The scientist ran attempts to understand what’s causing the problem after formulating or asking a question

• What’s making them ill?

3. Then, the scientist comes up with a hypothesis which is a testable explanation for the phenomenon or what’s occurring

• Maybe the water is contaminated

4. A prediction of the outcome is usually made based on the hypothesis

• If I give the animals different water they’ll regain their health

5...after which it is tested via an experiment.

• Replace the water sources and observe

6. The scientist then use the results to make new hypotheses or predict certain outcomes.

• Hypothesis supported: animals regain health
• Hypothesis not supported: maybe it’s the food?

Based on the outcome the scientist may repeat the process which is a normal part of these steps. The scientific method explored above is very repetitive.