What is Science?
What is the study of the natural world through observation and experimentation called?
Science
What is a step in the scientific method where you notice something in the world around you using one or more of your senses?
Make an observation
What are the two main types of data collected in an experiment?
Qualitative and quantitative data
Do all experiments have a control group? Yes or No
No
Only controlled experiments where researchers want to isolate the effect of a specific variable by comparing it to a group that doesn't receive the experimental treatment will include a control group.
In an experiment, what do you call the group that does not receive the independent variable and is used for comparison?
Control group
Science relies on collecting and analyzing __________ to understand the results of an experiment. This is usually placed on a graph.
Data
What is a testable prediction made based on prior knowledge or research called?
Hypothesis
What type of data is based on numbers and measurements, like length or temperature?
Quantitative data
Why should science avoid allowing personal opinions to affect outcomes of experiments?
Opinions are not facts. Science is based on facts/evidence.
What is the factor being measured or observed in an experiment, which responds to changes in the independent variable?
Dependent variable
What term describes information gathered using the five senses or scientific instruments?
Observation
What step involves analyzing the information from the results of your experiment, stating the results and deciding whether your hypothesis was or was not supported?
State your conclusion
Extra Credit: What is the term for data collected through direct observation and experimentation, forming the basis of scientific conclusions? It is the "proof" of your results.
Empirical evidence
What is the term when other scientists repeat an experiment of another scientist and get the same results? This ensures the results can be trusted.
Replication
What should a scientist do if their experimental results do not support their original hypothesis?
Revise the hypothesis and test again
The process of observing, asking questions, and seeking answers through tests and experiments is not unique to any one field of science. True of False
True
In an experiment, what is the variable called that is changed or what is tested that is different?
Independent variable
When scientists repeat an experiment multiple times having multiple trials is called what?
Repetition
How many independent variables should be tested at the same time within the same experiment?
1
Is it acceptable to revise/change your hypothesis and retest an experiment if the hypothesis is not supported in the first experiment?
Yes
Extra Credit: What is the process called when scientists critically evaluate each other's work to ensure accuracy and validity?
Peer review
What term describes the detailed step-by-step plan that outlines how an experiment will be conducted, including materials and methods?
Procedures
Extra Credit: What is information you can trust and can rely on because the person, publisher, or institution that is providing this information is credible/believable, like nasa.gov?
Reliable sources
Extra Credit: Why is the metric system used in science?
So all scientists around the world can understand the quantitative data. Most countries do not use the English system America uses.
What is the importance of identifying controlled variables in an experiment?
To ensure that the independent variable is the only factor affecting the outcome.