Introduction To Science: MCQ Quiz! Trivia
(277).jpg "Introduction To Science: MCQ Quiz! Trivia - Quiz")
Scientists make progress by using the scientific method, a process of checking conclusions against nature. After observing something, a scientist tries to explain what has been seen and form some conclusions. Test how well you know the method by taking the quiz below before you head to the lab. All the best!
Questions and Answers
- 1.
The factors that remain the same during an experiment also referred to as constants.
- A.
Independent Variables
- B.
Dependent Variables
- C.
Controlled Variables
- D.
Controlled Experiment
Correct Answer
C. Controlled VariablesExplanation
Controlled variables are the factors that are intentionally kept constant throughout an experiment. These variables do not change and are carefully controlled in order to isolate the effect of the independent variable on the dependent variable. By keeping these variables constant, researchers can ensure that any observed changes in the dependent variable are solely due to the manipulation of the independent variable. This helps to establish a cause-and-effect relationship between the independent and dependent variables.Rate this question:
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- 2.
The two types of observations are objective and subjective observations.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Objective observations are based on facts and measurable data, while subjective observations are based on personal opinions and interpretations. This statement is true because there are indeed two types of observations, objective and subjective, which differ in their nature and the way they are made.Rate this question:
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- 3.
An inference is using researched information to make a reasonable guess to explain observed events.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is incorrect. An inference is not a guess, but rather a logical conclusion drawn from observed events and researched information. It involves using evidence and reasoning to make an educated assumption or prediction about a situation. Therefore, the correct answer is False.Rate this question:
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- 4.
The factor being measured or observed in an experiment.
- A.
Independent Variable
- B.
Dependent Variable
- C.
Controlled Variable
- D.
Controlled Experiment
Correct Answer
B. Dependent VariableExplanation
The dependent variable is the factor being measured or observed in an experiment. It is the variable that is expected to change or be influenced by the independent variable. In other words, it is the outcome or result that is being studied. The dependent variable is often plotted on the y-axis in a graph or used as the response variable in statistical analysis.Rate this question:
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- 5.
The process of repeating an investigation.
- A.
Repetition
- B.
Replication
- C.
Hypothesis
- D.
Controlled Experiment
Correct Answer
B. ReplicationExplanation
Replication refers to the process of repeating an investigation. It involves reproducing the same experimental conditions and procedures to verify the results obtained in the original study. By replicating an investigation, researchers can assess the reliability and validity of the findings, ensuring that they are not due to chance or specific circumstances. Replication is an essential aspect of scientific research as it allows for the confirmation or refutation of previous findings, contributing to the overall advancement of knowledge in a particular field.Rate this question:
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- 6.
There are 5 steps to solving a problem (The Scientific Method).
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement that there are 5 steps to solving a problem (The Scientific Method) is false. The Scientific Method actually consists of several steps, which typically include making observations, formulating a hypothesis, conducting experiments, analyzing data, and drawing conclusions. It is a systematic approach used in scientific research to investigate and understand phenomena. Therefore, the given statement is incorrect.Rate this question:
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- 7.
A suggested answer or reason why one variable affects another in a certain way.
- A.
Hypothesis
- B.
Law
- C.
Investigation
- D.
Theory
Correct Answer
A. HypothesisExplanation
A hypothesis is a suggested answer or reason why one variable affects another in a certain way. It is an educated guess or a proposed explanation that can be tested through further investigation or experimentation. Unlike a law, which describes a phenomenon that has been repeatedly observed and is widely accepted as true, a hypothesis is a tentative explanation that requires further evidence and testing. Similarly, a theory is a well-substantiated explanation that has been extensively tested and supported by evidence, while an investigation is the process of gathering information or evidence to test a hypothesis or theory.Rate this question:
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- 8.
To observe or study by close examination and systematic inquiry.
- A.
Experiment
- B.
Investigation
- C.
Independent Variable
- D.
Replication
Correct Answer
B. InvestigationExplanation
Freebie: The answer is InvestigationRate this question:
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- 9.
A plan of inquiry that uses science process skills as tools to gather, organize, analyze, and communicate information.
- A.
Law
- B.
Theory
- C.
Scientific Inquiry
- D.
Scientific Method
Correct Answer
D. Scientific MethodExplanation
Scientific Method is the correct answer because it refers to a plan of inquiry that utilizes science process skills as tools to gather, organize, analyze, and communicate information. The scientific method is a systematic approach used by scientists to investigate and understand phenomena in a logical and objective manner. It involves making observations, formulating hypotheses, conducting experiments, analyzing data, and drawing conclusions. By following this method, scientists are able to ensure that their investigations are rigorous, reliable, and reproducible.Rate this question:
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- 10.
The ongoing process of discovery in science; the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather
- A.
Scientific inquiry
- B.
Repetition
- C.
Models
- D.
Scientific Method
Correct Answer
A. Scientific inquiryExplanation
Scientific inquiry refers to the ongoing process of discovery in science, where scientists study the natural world and propose explanations based on the evidence they gather. It involves asking questions, making observations, conducting experiments, and analyzing data to understand and explain phenomena. This process allows scientists to continuously explore and expand our understanding of the world around us.Rate this question:
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- 11.
The factor that is changed in an experiment in order to study changes in the dependent variable.
- A.
Independent Variable
- B.
Dependent Variable
- C.
Controlled Variables
- D.
Controlled Experiment
Correct Answer
A. Independent VariableExplanation
The independent variable is the factor that is intentionally changed in an experiment. It is manipulated by the researcher in order to observe its effect on the dependent variable. The dependent variable, on the other hand, is the variable that is measured or observed to determine the outcome of the experiment. Controlled variables are the factors that are kept constant throughout the experiment to ensure that they do not influence the results. A controlled experiment refers to an experiment where all variables, except the independent variable, are controlled and kept constant.Rate this question:
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- 12.
The use of multiple trials within procedures in an investigation.
- A.
Replication
- B.
Investigation
- C.
Experiment
- D.
Repetition
Correct Answer
D. RepetitionExplanation
Repetition refers to the use of multiple trials within procedures in an investigation. This involves conducting the same experiment or procedure multiple times to ensure the reliability and validity of the results. By repeating the experiment, researchers can identify any inconsistencies, errors, or outliers that may have occurred in a single trial. This helps to increase the accuracy and precision of the findings and allows for better analysis and interpretation of the data.Rate this question:
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- 13.
A statement that describes what scientists expect to happen every time under a particular set of conditions.
- A.
Theory
- B.
Law
- C.
Hypothesis
- D.
Scientific Method
Correct Answer
B. LawExplanation
A law is a statement that describes what scientists expect to happen every time under a particular set of conditions. It is a well-established and widely accepted principle that has been repeatedly tested and confirmed through experiments and observations. Laws are considered to be more certain and reliable than hypotheses or theories, as they have a higher degree of empirical evidence supporting them.Rate this question:
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- 14.
Tentative schemes or structures that correspond to real objects, events, or classes of events, and that have explanatory power.
- A.
Models
- B.
Theory
- C.
Investigation
- D.
Replication
Correct Answer
A. ModelsExplanation
Models are tentative schemes or structures that correspond to real objects, events, or classes of events, and that have explanatory power. They are representations or simulations of the real world that help us understand and explain phenomena. Models can be used in various fields such as science, economics, and social sciences to study complex systems and make predictions. They provide a simplified version of reality that allows us to test hypotheses, analyze data, and gain insights into the underlying mechanisms of the phenomena being studied.Rate this question:
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- 15.
A well-tested explanation for a wide range of observations or experimental results.
- A.
Experiment
- B.
Dependent Variable
- C.
Theory
- D.
Law
Correct Answer
C. TheoryExplanation
A theory is a well-tested explanation for a wide range of observations or experimental results. It is based on a comprehensive set of evidence and has been repeatedly tested and confirmed through experimentation. Theories are used to explain why certain phenomena occur and can be applied to various situations. Unlike laws, which describe a specific relationship or pattern, theories provide a broader understanding of the underlying principles and mechanisms behind natural phenomena. Therefore, the answer "Theory" is correct in this context.Rate this question:
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- 16.
The test of a hypothesis under controlled conditions.
- A.
Repetition
- B.
Models
- C.
Experiment
- D.
Investigation
Correct Answer
C. ExperimentExplanation
An experiment is a test of a hypothesis under controlled conditions. It involves manipulating variables and observing the effects to determine if the hypothesis is supported or not. By conducting an experiment, scientists can gather empirical evidence to validate or refute their hypotheses. Repetition refers to the act of repeating an experiment multiple times to ensure the results are consistent. Models are representations of real-world phenomena used to study and understand them. Investigation is a general term that can refer to various methods of exploring and gathering information, including experiments.Rate this question:
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- 17.
An experiment in which only one variable is manipulated.
- A.
Independent Variables
- B.
Dependent Variables
- C.
Controlled Variables
- D.
Controlled Experiment
Correct Answer
D. Controlled ExperimentExplanation
A controlled experiment is a type of experiment where only one variable is manipulated while all other variables are kept constant or controlled. This allows researchers to isolate the effects of the manipulated variable and determine its impact on the dependent variable. By controlling all other variables, researchers can ensure that any observed changes in the dependent variable are solely due to the manipulated variable. This type of experiment helps to establish cause-and-effect relationships and provides more reliable and valid results.Rate this question:
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- 18.
Subjective observations are opinions.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Subjective observations are opinions because they are based on personal perspectives, feelings, and interpretations rather than objective facts. In subjective observations, individuals express their own thoughts, beliefs, and preferences, which can vary from person to person. These observations are influenced by individual biases, experiences, and emotions, making them subjective rather than objective. Therefore, it is correct to say that subjective observations are opinions.Rate this question:
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- 19.
Predicting is using prior knowledge to make a forecast about a future event.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
This statement is true because predicting involves using previous information or experiences to make an educated guess or estimate about what will happen in the future. By analyzing patterns, trends, and data from the past, individuals can make predictions about potential outcomes or events that have not yet occurred.Rate this question:
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- 20.
All important scientific discoveries are made by professional scientists.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
This statement is false because not all important scientific discoveries are made by professional scientists. Many significant scientific discoveries have been made by amateurs, hobbyists, and individuals outside of the scientific community. Some examples include Gregor Mendel's work on genetics, Alexander Fleming's discovery of penicillin, and Rosalind Franklin's contributions to the discovery of the structure of DNA. These discoveries highlight the fact that scientific breakthroughs can come from various sources and not just from professionals in the field.Rate this question:
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- 21.
Scientists use all the steps in a scientific method in the same order to solve different problems.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Scientists do not always use all the steps in a scientific method in the same order to solve different problems. The scientific method is a flexible framework that allows scientists to approach problems in a systematic and logical manner, but the specific steps and their order may vary depending on the nature of the problem and the scientific discipline involved. Scientists may skip certain steps or modify the order of steps based on their expertise and the specific requirements of the problem at hand. Therefore, the statement that scientists use all the steps in a scientific method in the same order to solve different problems is false.Rate this question:
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- 22.
In a controlled experiment, the independent variable is the factor that is changed by the researcher.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The independent variable is the factor that the researcher deliberately manipulates or changes in a controlled experiment. This variable is under the control of the researcher and is believed to have an effect on the dependent variable. By changing the independent variable, the researcher can observe and measure the impact it has on the dependent variable. Therefore, the statement that the independent variable is the factor that is changed by the researcher is true.Rate this question:
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- 23.
When observing and recording the results of an experiment, observations include both measurements and descriptions.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When conducting an experiment, it is important to make both measurements and descriptions of the observed results. Measurements provide quantitative data, such as numerical values, while descriptions provide qualitative data, such as characteristics or behaviors. By including both measurements and descriptions, researchers can gather a comprehensive understanding of the experiment's outcomes, ensuring accurate and reliable results. Therefore, the statement that observations include both measurements and descriptions is true.Rate this question:
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- 24.
Using scientific methods means doing a controlled experiment.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "Using scientific methods means doing a controlled experiment" is false. While conducting a controlled experiment is one approach to using scientific methods, it is not the only method. Scientific methods involve a systematic and logical approach to gathering and analyzing data, making observations, formulating hypotheses, and testing them through various means such as experiments, observations, or simulations. Controlled experiments are just one tool in the scientific method toolbox, but other methods like observational studies or mathematical modeling can also be used.Rate this question:
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- 25.
There are never variables or controls in an observational study.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Observational studies are research designs where researchers observe and record data without intervening or manipulating any variables. However, it is not accurate to say that there are never variables or controls in an observational study. In fact, variables are often present in observational studies as researchers aim to examine the relationship between different variables. While researchers cannot control or manipulate these variables, they can still measure and analyze them to understand their impact on the outcome of interest. Therefore, the statement that there are never variables or controls in an observational study is false.Rate this question:
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- 26.
If the results of a study do not support a hypothesis, it means that the hypothesis is wrong.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Freebie: The answer is true.Rate this question:
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- 27.
Results from scientific experiments and observations often raise more questions and lead to further studies.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Scientific experiments and observations are designed to explore and understand the natural world. The results obtained from these investigations may provide new insights or unexpected findings, which can generate more questions and curiosity among scientists. This often leads to further studies and research to delve deeper into the topic and gain a more comprehensive understanding. Therefore, it is true that results from scientific experiments and observations often raise more questions and lead to further studies.Rate this question:
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- 28.
Data tables help you to organize your observations and test results.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Data tables are a useful tool for organizing and presenting data in a systematic and structured manner. They allow for easy comparison and analysis of observations and test results. By organizing data in rows and columns, data tables provide a clear and concise way to present information, making it easier to identify patterns and trends. Therefore, the given statement that data tables help in organizing observations and test results is true.Rate this question:
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- 29.
The process of trying to understand the world around you is___________________.
- A.
A controlled experiment
- B.
A control
- C.
A hypothesis
- D.
Science
Correct Answer
D. ScienceExplanation
Science is the process of trying to understand the world around you. It involves making observations, formulating hypotheses, conducting experiments, and analyzing data to gain knowledge and understanding about the natural world. Through the scientific method, scientists aim to explain and predict phenomena, and continuously expand our understanding of the universe.Rate this question:
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- 30.
Approaches taken to try to solve a problem are _______________
- A.
Controlled experiments
- B.
Sciences
- C.
Scientific methods
- D.
Hypothesis
Correct Answer
C. Scientific methodsExplanation
When trying to solve a problem, various methods and techniques are employed to systematically gather data, analyze it, and draw conclusions. These methods are collectively known as scientific methods. These methods involve formulating a hypothesis, conducting controlled experiments, and using logical reasoning to validate or refute the hypothesis. Therefore, the correct answer is "scientific methods."Rate this question:
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- 31.
A prediction about a problem that can be tested is _______________________
- A.
A hypothesis
- B.
An independent variable
- C.
A dependent variable
- D.
A control
Correct Answer
A. A hypothesisExplanation
A hypothesis is a prediction or an educated guess about the outcome of an experiment or study. It is based on prior knowledge and observations, and it can be tested through experimentation or data analysis. Unlike the other options, a hypothesis specifically refers to a prediction that can be tested, making it the correct answer in this case.Rate this question:
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- 32.
A factor being measured in an experiment is the ______________________.
- A.
Independent variable
- B.
Dependent variable
- C.
Control
- D.
Constant
Correct Answer
B. Dependent variableExplanation
The dependent variable is the factor that is being measured in an experiment. It is the variable that is expected to change or be influenced by the independent variable. The independent variable, on the other hand, is the factor that is manipulated or controlled by the researcher. The control is a standard or reference group that is used for comparison. A constant is a factor that remains unchanged throughout the experiment.Rate this question:
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- 33.
A variable in an experiment that stays the same is ______________
- A.
An independent variable
- B.
A dependent variable
- C.
A constant
- D.
A control
Correct Answer
C. A constantExplanation
In an experiment, a constant is a variable that remains unchanged throughout the experiment. It is used as a baseline or reference point to compare the effects of the other variables. By keeping a variable constant, it ensures that any observed changes are due to the manipulation of the independent variable and not influenced by other factors.Rate this question:
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- 34.
One way to analyze data from a study is to ______________
- A.
Make a graph
- B.
Develop a hypothesis
- C.
Choose which variable to keep constant
- D.
Recognize a problem
Correct Answer
A. Make a grapHExplanation
Making a graph is a useful way to analyze data from a study because it allows for visual representation of the data. By plotting the data points on a graph, patterns, trends, and relationships between variables can be easily identified and understood. This visual representation helps in drawing conclusions and making interpretations about the data, which can be useful in further analysis and decision-making processes.Rate this question:
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- 35.
Scientists may draw conclusions from the results of ____________________.
- A.
Experiments
- B.
Observational studies
- C.
Both experiments and observational studies
- D.
Neither experiments nor observational studies
Correct Answer
C. Both experiments and observational studiesExplanation
Scientists may draw conclusions from the results of both experiments and observational studies because both types of studies provide valuable data and evidence. Experiments involve manipulating variables in a controlled setting to determine cause-and-effect relationships, while observational studies involve observing and analyzing naturally occurring phenomena. By combining the findings from both types of studies, scientists can obtain a more comprehensive understanding of a research question or hypothesis, increasing the reliability and validity of their conclusions.Rate this question:
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- 36.
Looking for differences in objects or events is _________________.
- A.
Comparing
- B.
Contrasting
- C.
Infering
- D.
Hypothesizing
Correct Answer
B. ContrastingExplanation
Contrasting refers to the act of identifying and highlighting the differences between objects or events. It involves comparing two or more things and focusing on their contrasting characteristics or features. By contrasting, one can understand the distinctions and variations between different objects or events, allowing for a better understanding and analysis of the subject matter.Rate this question:
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- 37.
An arrangement of things or events in certain order is _________________
- A.
A comparison
- B.
A contrast
- C.
A sequence
- D.
A hypothesis
Correct Answer
C. A sequenceExplanation
An arrangement of things or events in a certain order refers to a sequence. In a sequence, items or events are arranged in a specific and predetermined order, following a pattern or a sequence of steps. This term is commonly used in mathematics, where numbers or elements are arranged in a particular order. It can also be used in various other contexts, such as organizing events or tasks in a specific order.Rate this question:
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- 38.
When designing an experiment, the first step is to _________________.
- A.
Draw conclusions
- B.
Form a hypothesis
- C.
Recognize a problem
- D.
Test a hypothesis
Correct Answer
C. Recognize a problemExplanation
The first step in designing an experiment is to recognize a problem. This involves identifying a specific issue or question that needs to be addressed through the experiment. Once the problem is recognized, the researcher can then move on to formulating a hypothesis, designing the experiment, and conducting tests to gather data and draw conclusions.Rate this question:
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- 39.
When conducting an experiment, the last step is to ___________________
- A.
Analyze the data
- B.
Draw conclusions
- C.
Form a hypothesis
- D.
Recognize a problem
Correct Answer
B. Draw conclusionsExplanation
After conducting an experiment, the last step is to draw conclusions based on the data collected and analyzed. This involves interpreting the results and determining whether they support or refute the initial hypothesis. Drawing conclusions allows researchers to make inferences and understand the implications of their findings, providing insights and contributing to the overall understanding of the topic being studied.Rate this question:
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- 40.
Recognizing a problem is one possible approach in using_____________________.
- A.
Sequence
- B.
Scientific methods
- C.
Controls
- D.
Constants
Correct Answer
B. Scientific methodsExplanation
Recognizing a problem is an essential step in using scientific methods. Scientific methods involve a systematic approach to investigating and understanding phenomena through observation, experimentation, and analysis. By recognizing a problem, researchers can identify the specific issue or question they want to address and then proceed to formulate hypotheses, design experiments, collect data, and draw conclusions based on evidence. This approach helps to ensure that the research is objective, reliable, and can contribute to the advancement of knowledge in a particular field.Rate this question:
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- 41.
Scientists often will not form a hypothesis until after _________________ has (have) been collected.
- A.
Graphs
- B.
Numerous scientists
- C.
Much information
- D.
Problem-solving methods
Correct Answer
C. Much informationExplanation
Scientists often will not form a hypothesis until after much information has been collected. This is because a hypothesis is an educated guess or prediction based on existing knowledge and observations. In order to make an informed hypothesis, scientists need to gather a significant amount of data and information related to the topic they are studying. This allows them to analyze the data and draw conclusions before formulating a hypothesis. Without sufficient information, it would be difficult for scientists to make accurate predictions or hypotheses.Rate this question:
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- 42.
If a scientist wanted to study the eating habits of a fox, she would most likely use___________________.
- A.
A trial
- B.
An observational study
- C.
A controlled experiment
- D.
A blind experiment
Correct Answer
B. An observational studyExplanation
An observational study would be the most suitable method for studying the eating habits of a fox. This is because it involves observing and recording the behavior of the fox in its natural environment without any manipulation or interference. It allows the scientist to gather information about the fox's eating habits by simply observing its behavior without any intervention. This method would provide valuable insights into the fox's natural behavior and eating patterns.Rate this question:
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- 43.
If the main topic were "The Scientific Method" check the boxes that would fall underneath.
- A.
Recognizing a problem
- B.
Inferring
- C.
Forming a hypothesis
- D.
Testing a hypothesis
- E.
Memorizing
- F.
Analyzing data
Correct Answer(s)
A. Recognizing a problem
C. Forming a hypothesis
D. Testing a hypothesis
F. Analyzing dataExplanation
The main topic of "The Scientific Method" involves several steps: recognizing a problem, forming a hypothesis, testing a hypothesis, and analyzing data. These steps are essential in the scientific method as they help scientists to systematically investigate and understand natural phenomena. Memorizing is not a step in the scientific method, and inferring is often a part of the process but not explicitly mentioned in the given options. Therefore, the correct answer includes recognizing a problem, forming a hypothesis, testing a hypothesis, and analyzing data.Rate this question:
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- 44.
To be valid, a THEORY must only pass a couple tests.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
A theory must pass more than just a couple tests to be considered valid. Valid theories are supported by substantial evidence, have been tested and confirmed through multiple experiments, and are able to make accurate predictions. Therefore, the statement that a theory only needs to pass a couple tests to be valid is incorrect.Rate this question:
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- 45.
Experiments that illustrate a theory must be able to be replicated.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Experiments that illustrate a theory must be able to be replicated because replication is essential for verifying the validity and reliability of scientific findings. Replication allows other researchers to independently test the theory and obtain similar results, which strengthens the confidence in the theory's accuracy. If an experiment cannot be replicated, it raises doubts about the credibility of the theory and its ability to explain and predict phenomena. Therefore, the statement "Experiments that illustrate a theory must be able to be replicated" is true.Rate this question:
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- 46.
You must be able to predict from a theory.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Being able to predict from a theory is an important aspect of scientific understanding. Predictions allow scientists to test the validity of a theory and determine if it accurately explains and predicts real-world phenomena. By making predictions based on a theory, scientists can design experiments or observations to gather data that either supports or refutes the theory. This process helps to refine and improve scientific theories over time. Therefore, the statement "You must be able to predict from a theory" is true as it highlights the significance of prediction in scientific inquiry.Rate this question:
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- 47.
Many scientific laws and theories can be stated as mathematical equations which are QUANTITATIVE statements.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Scientific laws and theories are often expressed as mathematical equations because they provide a quantitative representation of the relationships and patterns observed in the natural world. By using mathematical equations, scientists can precisely describe and predict phenomena, making their findings more objective and reproducible. Therefore, the statement that many scientific laws and theories can be stated as mathematical equations is true.Rate this question:
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- 48.
Theories and laws are absolute (stay the same forever and ever).
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement suggests that theories and laws are absolute, meaning they never change. However, this is not true. Theories and laws in science are constantly evolving and being refined as new evidence and information emerge. They are based on the best available knowledge and evidence at a given time, but they can be updated or even replaced as new discoveries are made. Therefore, theories and laws are not absolute and do not stay the same forever.Rate this question:
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- 49.
Models represent things that are too big, too complex, or too small to study easily.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Models are representations of real-world objects, systems, or phenomena that are created to make them easier to study and understand. They are used when the actual objects or systems are too big, too complex, or too small to be observed directly or studied easily. Models can be physical, such as a scale model of a building, or conceptual, such as a mathematical model of a biological process. By creating models, scientists and researchers can simulate and analyze different scenarios, make predictions, and gain insights into the behavior and characteristics of the real-world objects or systems they represent. Therefore, the statement is true.Rate this question:
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- 50.
Computer models can save time and money because long and complex calculations are done by machine.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Computer models can save time and money because they are capable of performing long and complex calculations much faster and more accurately than humans. By automating these calculations, computer models eliminate the need for manual calculations, which can be time-consuming and prone to errors. This allows for quicker decision-making and reduces the risk of costly mistakes. Additionally, computer models can be easily adjusted and updated, saving the expense of reworking calculations manually. Overall, the use of computer models can greatly enhance efficiency and cost-effectiveness in various fields.Rate this question:
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