Why can scientists never prove a theory absolutely?(1 point)

Question

Responses

Because scientific theories are just educated guesses and lack empirical support
Because scientific theories are just educated guesses and lack empirical support

Because new evidence or observations could potentially contradict or modify the theory
Because new evidence or observations could potentially contradict or modify the theory

Because scientific theories are based on untested hypotheses
Because scientific theories are based on untested hypotheses

Because scientific theories are constantly changing and cannot be relied upon

Answer 1

The correct response is:

Because new evidence or observations could potentially contradict or modify the theory.

In science, theories are based on empirical evidence and observations, but they remain open to revision if new data emerges that does not support them. This characteristic of science is essential for its self-correcting nature.

Answer 2

What is the main difference between a hypothesis and a theory in scientific research?(1 point)
Responses

A hypothesis is a tentative explanation that can be tested by experiments while a theory is well-substantiated explanation based on a body of evidence.
A hypothesis is a tentative explanation that can be tested by experiments while a theory is well-substantiated explanation based on a body of evidence.

A hypothesis is a general principle that explains a wide range of phenomena, while a theory is a specific prediction about the outcome of an experiment.
A hypothesis is a general principle that explains a wide range of phenomena, while a theory is a specific prediction about the outcome of an experiment.

A hypothesis can never be modified, whereas a theory is subject to change with new evidence.
A hypothesis can never be modified, whereas a theory is subject to change with new evidence.

A hypothesis is a well-substantiated explanation of natural phenomena, while a theory is an educated guess that needs to be tested.

Answer 3

The correct response is:

A hypothesis is a tentative explanation that can be tested by experiments while a theory is well-substantiated explanation based on a body of evidence.

A hypothesis is an initial, testable proposition or educated guess, whereas a theory is a comprehensive explanation supported by a substantial amount of evidence and research.

Answer 4

Which of the following is a limitation of science?(1 point)
Responses

Science cannot address supernatural phenomena or questions of moral and ethical values.
Science cannot address supernatural phenomena or questions of moral and ethical values.

Science can provide definitive answers to all questions about the natural world.
Science can provide definitive answers to all questions about the natural world.

Science relies solely on subjective opinions and personal beliefs.
Science relies solely on subjective opinions and personal beliefs.

Science can predict every future event with absolute certainty.

Answer 5

The correct response is:

Science cannot address supernatural phenomena or questions of moral and ethical values.

Science is limited to studying the natural world and phenomena that can be observed and tested. It does not encompass questions about the supernatural or subjective moral and ethical values.

Answer 6

Which of the following is a crucial lab safety practice?(1 point)
Responses

Eating and drinking in the laboratory to maintain energy levels.
Eating and drinking in the laboratory to maintain energy levels.

Ignoring safety data sheets since they are not important.
Ignoring safety data sheets since they are not important.

Disposing of chemical in any sink to ensure quick cleanup.
Disposing of chemical in any sink to ensure quick cleanup.

Wearing appropriate personal protective equipment (PPE) at all times.

Answer 7

The correct response is:

Wearing appropriate personal protective equipment (PPE) at all times.

Wearing PPE, such as gloves, goggles, and lab coats, is a crucial safety practice in the laboratory to protect against potential hazards.

Answer 8

Which of the following is an important safety procedure for scientists working in a natural environment?(1 point)
Responses

Avoiding the use of any safety equipment to reduce the weight of their gear.
Avoiding the use of any safety equipment to reduce the weight of their gear.

Wearing appropriate clothing and protective gear suited for the specific environment.
Wearing appropriate clothing and protective gear suited for the specific environment.

Working alone to minimize the impact on the environment.
Working alone to minimize the impact on the environment.

Ignoring weather forecasts since natural conditions are unpredictable.

Answer 9

The correct response is:

Wearing appropriate clothing and protective gear suited for the specific environment.

Using suitable clothing and protective gear is essential for ensuring safety when working in natural environments, as it helps protect against the elements and potential hazards.

Answer 10

Why is the Safety Data Sheet (SDS) important in a laboratory setting?(1 point)
Responses

It contains detailed information on the properties, hazard, safe handling and emergency measures related to chemicals used in the lab.
It contains detailed information on the properties, hazard, safe handling and emergency measures related to chemicals used in the lab.

It serves as a record of experiments conducted in the lab.
It serves as a record of experiments conducted in the lab.

It provides entertainment for lab personnel during breaks.
It provides entertainment for lab personnel during breaks.

It lists the names of all personnel who have worked with a particular chemical.

Answer 11

The correct response is:

It contains detailed information on the properties, hazard, safe handling and emergency measures related to chemicals used in the lab.

Safety Data Sheets (SDS) are crucial for informing laboratory personnel about the risks associated with chemicals, as well as how to handle them safely and what to do in case of an emergency.