Answer:
Step 7- Communicate. Present/share your results. Replicate.
Step 1- Question.
Step 2-Research.
Step 3-Hypothesis.
Step 4-Experiment.
Step 5-Observations.
Step 6-Results/Conclusion
Explanation:
Answer: The answer is true
There's only one question there.
The answer is "Greater amplitude".
If the substance doesn't change chemically, it is a physical reaction.
