WorksheetsNature of Science - Timko
Total questions: 32
Worksheet time: 1hrs 4mins
A pot of boiling water on the stove is an example of a closed system.
An acidic solution has a pH greater than 7.
true
false
What is the primary goal of a controlled experiment?
To prove a hypothesis correct.
To manipulate data.
To test the effect of a single variable.
To gather as much data as possible.
A scientific law is a scientific theory that has been thoroughly tested.
true
false
Sscientists cannot actually measure a process like soil erosion over the entire planet, so they ___.
prove their hypotheses without the use of external data
use statistical sampling and scientific models to make estimates
Why is replication important in scientific research?
It makes the experiment more complex.
It ensures that the results are always the same.
It allows other scientists to verify the results.
It is necessary to manipulate data effectively.
Another name for the 1st Law of Thermodynamics is the Law of Conservation of Matter.
True
False
A group of scientists in Mexico perform an experiment and determine the rate of photosynthesis for a cactus. A group of scientists in Germany perform the same experiment. Their results ___.
will be different because they are performing the experiment in different countries.
will be different because the rates of conversion are different in those countries.
will be the same because the same experiment was performed in both countries.
will be the same because Mexico and Germany have the same rates of conversion.
Why is peer review important in the scientific community?
It ensures that only popular ideas are published.
It allows scientists to criticize each other's work.
It prevents the publication of any new ideas.
It guarantees that all scientific research is flawless.
What is the purpose of a control group in an experiment?
To provide a basis for comparison with the experimental group.
To manipulate the independent variable.
To ensure that the experiment runs quickly.
To receive the treatment being tested.
When collecting data, what is the difference between qualitative and quantitative data?
Qualitative data is measured in numbers, while quantitative data is descriptive.
Qualitative data is based on observations, while quantitative data is based on measurements.
Qualitative data is more accurate than quantitative data.
Qualitative data is only used in social sciences, while quantitative data is used in natural sciences.
Why is it important for scientists to remain open-minded about their hypotheses and findings?
Open-mindedness helps them gain funding for their research.
It ensures that they agree with the majority of scientists.
Science is a continuous process, and new evidence may lead to revisions.
Open-mindedness is not important in science.
In an experiment, what is the independent variable?
The variable that is observed and measured.
The variable that is manipulated or changed by the experimenter.
The variable that remains constant throughout the experiment.
The variable that is influenced by the experimental results.
