Why is it important to form a hypothesis when conducting a scientific investigation?(1 point)

Responses

A hypothesis provides a final conclusion for the investigation.
A hypothesis provides a final conclusion for the investigation.

A hypothesis ensures that the results will be accurate.
A hypothesis ensures that the results will be accurate.

A hypothesis helps to develop a theory immediately.
A hypothesis helps to develop a theory immediately.

A hypothesis offers a testable statement that guides the direction of the experiment.

11 answers

The correct response is:

A hypothesis offers a testable statement that guides the direction of the experiment.

This option highlights the importance of a hypothesis in providing a clear focus for the investigation, helping to define the research question and determine how to approach the experimentation process.

Which of the following is NOT a limitation of science?(1 point)
Responses

Science can almost replicate natural events, but it is not exact.
Science can almost replicate natural events, but it is not exact.

Science requires a lot of money for scientific investigation.
Science requires a lot of money for scientific investigation.

Science is always changing.
Science is always changing.

Science cannot make value judgments.

The option that is NOT a limitation of science is:

Science is always changing.

This statement describes a characteristic of science, indicating that scientific knowledge evolves as new discoveries are made. The other options mention practical limitations or constraints associated with conducting scientific research.

Which of the following best describes the dangers of handling corrosive materials in a laboratory?(1 point)
Responses

Corrosive materials can cause explosions when exposed to light.
Corrosive materials can cause explosions when exposed to light.

Corrosive materials can damage and destroy living tissues upon contact, as well as corrode metals and other materials.
Corrosive materials can damage and destroy living tissues upon contact, as well as corrode metals and other materials.

Corrosive materials emit toxic fumes that are harmless to human health.
Corrosive materials emit toxic fumes that are harmless to human health.

Corrosive materials are non-reactive and safe to handle without protective equipment.

The option that best describes the dangers of handling corrosive materials in a laboratory is:

Corrosive materials can damage and destroy living tissues upon contact, as well as corrode metals and other materials.

This statement accurately conveys the hazards associated with corrosive substances, including their harmful effects on both biological tissues and materials.

Which of the following is a scientific statement?(1 point)
Responses

Nanotechnology is dangerous and should be heavily regulated
Nanotechnology is dangerous and should be heavily regulated

Water boils at 100 degrees Celsius at standard atmospheric pressure.
Water boils at 100 degrees Celsius at standard atmospheric pressure.

Limiting carbon emissions is necessary to combat climate change.
Limiting carbon emissions is necessary to combat climate change.

Using animals for scientific experiments is unethical.

The scientific statement among the options provided is:

Water boils at 100 degrees Celsius at standard atmospheric pressure.

This statement is a factual observation that can be tested and verified through experimentation. The other statements involve opinions or conclusions that may not be universally accepted or scientifically measurable.

Why is it necessary to test a hypothesis in scientific research?(1 point)
Responses

To avoid having to conduct further experiments.
To avoid having to conduct further experiments.

To prove the hypothesis is always correct.
To prove the hypothesis is always correct.

To collect data that can confirm or contradict the hypothesis.
To collect data that can confirm or contradict the hypothesis.

To ensure all scientists agree with the hypothesis.

The correct response is:

To collect data that can confirm or contradict the hypothesis.

Testing a hypothesis is essential in scientific research because it allows researchers to gather empirical evidence that supports or refutes the proposed explanation. This process is fundamental to the scientific method and aids in advancing knowledge.

What is the best definition of a scientific theory?(1 point)
Responses

An educated guess
An educated guess

A tentative guess about the natural world that has yet to be tested
A tentative guess about the natural world that has yet to be tested

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
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

A detailed description of a scientific experiment

The best definition of a scientific theory is:

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.

This definition accurately reflects the nature of scientific theories, which are grounded in strong empirical evidence and have undergone rigorous testing and validation.