Here are the correct responses for each question based on scientific principles and safety protocols:
Question 1: Why is it important to form a hypothesis when conducting a scientific investigation?
- A hypothesis offers a testable statement that guides the direction of the experiment.
Question 2: Which of the following is NOT a limitation of science?
- Science cannot make value judgments.
Question 3: Which of the following best describes the dangers of handling corrosive materials in a laboratory?
- Corrosive materials can damage and destroy living tissues upon contact, as well as corrode metals and other materials.
Question 4: Which of the following is a scientific statement?
- Water boils at 100 degrees Celsius at standard atmospheric pressure.
Question 5: Why is it necessary to test a hypothesis in scientific research?
- To collect data that can confirm or contradict the hypothesis.
Question 6: What is the best definition of a scientific theory?
- A well-substantiated explanation of an aspect of the natural world that is based on a body of evidence and has been repeatedly confirmed through observation and experimentation.
Question 7: Why can scientists never prove a theory absolutely?
- Because new evidence or observations could potentially contradict or modify the theory.
Question 8: What is the main difference between a hypothesis and a theory in scientific research?
- A hypothesis is a tentative explanation that can be tested by experiments while a theory is a well-substantiated explanation based on a body of evidence.
Question 9: Which of the following is a limitation of science?
- Science cannot address supernatural phenomena or questions of moral and ethical values.
Question 10: Which of the following is a crucial lab safety practice?
- Wearing appropriate personal protective equipment (PPE) at all times.
Question 11: Which of the following is an important safety procedure for scientists working in a natural environment?
- Wearing appropriate clothing and protective gear suited for the specific environment.
These answers reflect key concepts in scientific methodology and safety practices.