Scientific Method- Mr. Angeles
Questions and Answers
- 1.
Which variable could be measured during an experiment?
- A.
Independent Variable
- B.
Dependent Variable
Correct Answer
B. Dependent VariableExplanation
The dependent variable is the variable that is being measured or observed during an experiment. It is the outcome or result that is influenced by the independent variable, which is the variable that is manipulated or changed by the researcher. The dependent variable is dependent on the independent variable, as any changes in the independent variable can affect the dependent variable. Therefore, the dependent variable is the variable that could be measured during an experiment.Rate this question:
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- 2.
Which variable could be changed by the experimenter?
- A.
Independent Variable
- B.
Dependent Variable
Correct Answer
A. Independent VariableExplanation
The experimenter has control over the independent variable in an experiment. This variable is intentionally manipulated or changed by the experimenter to observe its effect on the dependent variable. The dependent variable, on the other hand, is the variable that is being measured or observed and is expected to change in response to the independent variable. Therefore, the independent variable is the variable that could be changed by the experimenter.Rate this question:
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- 3.
Which could be a factor that remains at the same phases of an experiment?
- A.
Observation(s)
- B.
Science
- C.
Scientific Method(s)
- D.
Technology
- E.
Constant(s)
Correct Answer
E. Constant(s)Explanation
In an experiment, a constant is a factor that remains unchanged throughout the entire process. It is not affected by any of the variables being tested. Constants are important because they provide a baseline for comparison and help ensure that any changes observed are due to the manipulated variables and not other factors. By keeping certain factors constant, scientists can isolate the effects of the variables they are interested in studying. Therefore, constant(s) is the factor that remains the same phases of an experiment.Rate this question:
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- 4.
What is an educated statement that could be tested called?
- A.
Observation(s)
- B.
Science
- C.
Hypothesis
- D.
Scientific Method(s)
- E.
Technology
Correct Answer
C. HypothesisExplanation
A hypothesis is an educated statement that can be tested. It is a proposed explanation or prediction based on observations and prior knowledge. In the scientific method, a hypothesis is formulated to explain a phenomenon or make a prediction, and then it is tested through experiments or further observations. A hypothesis is an essential component of scientific research as it allows scientists to systematically gather evidence and draw conclusions based on empirical data.Rate this question:
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- 5.
What is the process of understanding the world called?
- A.
Science
- B.
Technology
- C.
Constant(s)
- D.
Control(s)
- E.
Observation(s)
Correct Answer
A. ScienceExplanation
Science is the process of understanding the world through systematic observation, experimentation, and the formulation of theories or laws based on the collected data. It involves using evidence and logical reasoning to explain natural phenomena and make predictions about future events. Science helps us gain knowledge about the world and improve our understanding of the universe and everything in it.Rate this question:
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- 6.
What are step-by-step approaches to solving problems called?
- A.
Science
- B.
Technology
- C.
Scientific Method(s)
- D.
Inference(s)
- E.
Constant(s)
Correct Answer
C. Scientific Method(s)Explanation
Step-by-step approaches to solving problems are called scientific methods. The scientific method is a systematic process used by scientists to investigate phenomena, acquire new knowledge, or correct and integrate previous knowledge. It involves making observations, formulating hypotheses, conducting experiments, analyzing data, and drawing conclusions. The scientific method provides a structured and reliable way to solve problems and gain a deeper understanding of the natural world.Rate this question:
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- 7.
What is it called if I use my senses to gather bits of information called?
- A.
Control(s)
- B.
Science
- C.
Constant(s)
- D.
Hypothesis
- E.
Observation(s)
Correct Answer
E. Observation(s)Explanation
Observation refers to the act of using our senses to gather information or data about the world around us. It involves carefully watching, listening, smelling, touching, or tasting something in order to gain knowledge or understanding. By making observations, we can gather evidence, identify patterns, and make inferences or conclusions about the phenomena we are studying. In the context of the question, using our senses to gather bits of information is specifically referred to as observation.Rate this question:
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- 8.
What is the 1st step to the scientific method?
- A.
Observe and Infer
- B.
Recognize the Problem
- C.
Plan the Experiment
- D.
Analyze your Data
- E.
Communicate
Correct Answer
B. Recognize the ProblemExplanation
The first step to the scientific method is to recognize the problem. This involves identifying and defining the specific issue or question that needs to be investigated. Without recognizing the problem, it is impossible to proceed with the scientific method as it provides the foundation for formulating hypotheses, designing experiments, and analyzing data.Rate this question:
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- 9.
What would be the final step to the scientific method?
- A.
Communicate
- B.
Observe and Infer
- C.
Draw Conclusion
- D.
Do the Experiment
- E.
Draw Conclusions
Correct Answer
A. CommunicateExplanation
The final step of the scientific method is to communicate the results and findings of the experiment. This is important because it allows other scientists to review and replicate the experiment, ensuring the validity and reliability of the results. Communication also helps in sharing knowledge and advancements in the scientific community, leading to further research and development.Rate this question:
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- 10.
The reason for wearing safety goggles in the laboratory is to ______________.
- A.
Improve eyesight.
- B.
Protect the eyes from harmful substances
- C.
Protect the clothes from chemical spills
- D.
Keep your clothes away from the fire
- E.
Apply the procedure
Correct Answer
B. Protect the eyes from harmful substancesExplanation
Safety goggles are worn in the laboratory to protect the eyes from harmful substances. In a laboratory, there are various chemicals and materials that can be hazardous if they come into contact with the eyes. Safety goggles provide a barrier between the eyes and these substances, preventing any potential injuries or damage to the eyes. Wearing safety goggles is an important safety precaution to ensure the well-being and protection of the eyes in a laboratory setting.Rate this question:
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- 11.
An organized process used to gather observations and test a hypothesis is _________.
- A.
A problem
- B.
An experiment
- C.
An experience
- D.
An exercise
- E.
A constant
Correct Answer
B. An experimentExplanation
An experiment is an organized process used to gather observations and test a hypothesis. It involves systematically manipulating variables and measuring their effects in order to draw conclusions and validate or refute a hypothesis. Through experimentation, scientists can investigate cause-and-effect relationships and gain a deeper understanding of the natural world.Rate this question:
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- 12.
An idea, structure, or system that can be used to represent something you are trying to explain is a ____________.
- A.
Model
- B.
Constant
- C.
Control
- D.
Hypothesis
- E.
Variable
Correct Answer
A. ModelExplanation
A model is a representation or framework that can be used to explain or understand something. It can be a physical object, a diagram, or a conceptual framework. Models are used to simplify complex concepts or systems and make them easier to study or analyze. They provide a way to visualize and communicate ideas, and can be used to make predictions or test hypotheses. Therefore, a model is the most appropriate choice to represent something that is being explained.Rate this question:
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- 13.
A rule or principle that describes the behavior of something in nature is a ______________.
- A.
Hypothesis
- B.
Conclusion
- C.
Theory
- D.
Scientific law
- E.
Variable
Correct Answer
D. Scientific lawExplanation
A scientific law is a rule or principle that describes the behavior of something in nature. It is based on repeated observations and experiments and is widely accepted as true. Unlike a hypothesis or theory, a scientific law is a statement of fact that does not require further testing or validation. It provides a concise and general explanation of a natural phenomenon or behavior.Rate this question:
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- 14.
A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is one controlled variable in this experiment?
- A.
Amount of fertlizer given to experimental group
- B.
Growth of corn
- C.
Type of fertilizer
Correct Answer
A. Amount of fertlizer given to experimental groupExplanation
In this experiment, the scientist is comparing the growth of corn in two different conditions: row 1 with fertilizer and row 2 without fertilizer. The controlled variable is the amount of fertilizer given to the experimental group. By keeping the amount of fertilizer constant, the scientist can determine if the growth of corn is influenced by the presence or absence of fertilizer, while other factors like water and light intensity remain the same for both rows.Rate this question:
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- 15.
John is doing research to come up with an educated guess to explain his problem. What step is he currently working in?
- A.
Step 1
- B.
Step 2
- C.
Step 3
- D.
Step 4
- E.
Step 5
Correct Answer
B. Step 2Explanation
John is currently working in Step 2. In the research process, Step 1 involves identifying the problem, while Step 2 involves gathering information and data to come up with an educated guess or hypothesis. Therefore, John is in the stage of collecting information and data to formulate a hypothesis that can potentially explain his problem.Rate this question:
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- 16.
Suzy wanted to know if thicker candles burn longer than thinner candles. Her hypothesis was that if she used a thick candle that it would burn for the longest amount of time. She got ten candles that were all the same brand, height, smell, and color. The only difference in the candles was they were all a different size, She lit them at the same time and recorded how long it took for each candle to burn out. What was her independent variable?
- A.
Thickness of the candle
- B.
Length of time the candle burned
- C.
Color of the candle
Correct Answer
A. Thickness of the candleExplanation
The independent variable in this experiment is the thickness of the candle. Suzy is testing if thicker candles burn longer than thinner candles, so she is manipulating the thickness of the candles to see how it affects the burn time. The other variables, such as the length of time the candle burned and the color of the candle, are not being manipulated by Suzy and are therefore not independent variables in this experiment.Rate this question:
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- 17.
Janet wanted to see if the height of a person affected the length of their handspan. She measured three people's heights, and measured their handspans. She found that the taller a person is, the longer their handspan is. What is wrong with her experiment?
- A.
She tested too many variables at once.
- B.
She did not test a large enough sample of people.
- C.
She did not control all of the variables.
Correct Answer
B. She did not test a large enough sample of people.Explanation
The correct answer is that she did not test a large enough sample of people. In order to draw accurate conclusions, it is important to have a sufficient sample size that is representative of the population being studied. By only measuring three people, Janet's sample size is too small to make generalizations about the relationship between height and handspan. A larger sample size would provide more reliable data and allow for better analysis of any potential patterns or trends.Rate this question:
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- 18.
A variable is anything that can
- A.
Change an experiment
- B.
Change how you look
- C.
Affect the time
- D.
Look cool in an experiment
Correct Answer
A. Change an experimentExplanation
A variable is a factor or condition that can be altered or manipulated in an experiment. By changing a variable, it can have an impact on the outcome or results of the experiment. This can be done by adjusting the value or condition of the variable being studied. Therefore, changing an experiment is a valid explanation for the correct answer.Rate this question:
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- 19.
How many variables should you TEST at a time in an experiment?
- A.
283,283,845,238,954.23413383
- B.
0
- C.
1
- D.
17
Correct Answer
C. 1Explanation
In an experiment, it is recommended to test only one variable at a time. This is because testing multiple variables simultaneously can make it difficult to determine which variable is causing a specific outcome or effect. By testing one variable at a time, researchers can isolate and analyze the impact of that specific variable on the experiment's results.Rate this question:
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- 20.
Which statement below is NOT an observation
- A.
The rock fizzed when acid was poured on it
- B.
The experiment ended at 9:45AM
- C.
The explosion rose over 3 feet from the table
- D.
The chemicals look gross when you mix them together
Correct Answer
D. The chemicals look gross when you mix them togetherExplanation
The statement "The chemicals look gross when you mix them together" is not an observation because it involves a subjective judgment or opinion rather than a factual observation. Observations should be based on objective and measurable data, such as the fizzing of the rock when acid is poured on it or the height of the explosion.Rate this question:
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- 21.
Olivia got a drink from the water fountain and said "Eww, water at home is so much better." Since she likes home water , she wants to set up an experiment to test which kind of water is healthier. What statement do you think could be Olivia's hypothesis?
- A.
"If I test both waters, then the water from my house will be healthier than school water"
- B.
"The results show home water is healthier than school water"
- C.
"Water from school is better for you"
- D.
"Samples of school water look less clean"
Correct Answer
A. "If I test both waters, then the water from my house will be healthier than school water"Explanation
Olivia's hypothesis is that if she tests both waters, then the water from her house will be healthier than school water. This hypothesis suggests that Olivia believes there may be a difference in the healthiness of the water from her house and the water from school. She wants to conduct an experiment to gather evidence and determine if her belief is true.Rate this question:
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- 22.
Tara thinks that a video game will improve scores on a social studies test. She has 4 students take an exam before and after playing through an entire video game. The table below shows their scores. Before video game After video game Student 1 79 85 Student 2 86 80 Student 3 77 73 Student 4 93 90 Do these results show that the video game helps students improve test scores? Why?
- A.
Yes, one student improved, so it works!
- B.
No, only one student improved, the rest didn't
- C.
Yes, the scores stayed about the same
- D.
I have no idea what this is about
Correct Answer
B. No, only one student improved, the rest didn'tExplanation
The given table shows the scores of 4 students before and after playing the video game. Out of the 4 students, only one student showed improvement in their scores after playing the game. The scores of the other three students either stayed the same or decreased. Therefore, the results do not show that the video game helps students improve test scores as the majority of the students did not experience any improvement.Rate this question:
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- 23.
In scientific research, the DEPENDENT VARIABLE is a factor that is measured to learn the effect of one or more independent variables.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The dependent variable is a factor that is measured in scientific research to understand the impact of one or more independent variables. This means that the dependent variable is influenced by the independent variable(s) being studied. By measuring the dependent variable, researchers can determine the effect or relationship between the independent variable(s) and the outcome being measured. Therefore, the statement is true.Rate this question:
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- 24.
In an experiment, you water three sunflower plants with salt water. Each plant receives a different concentration of salt water solution. A fourth plant receives pure water. After a two week period, the height of each plant is measured. In this experiment, the plant height is which of the following?
- A.
The control
- B.
The DEPENDENT variable
- C.
The INDEPENDENT variable
- D.
Qualitative data
Correct Answer
B. The DEPENDENT variableExplanation
In this experiment, the height of each plant is being measured after being watered with different concentrations of salt water. The height of the plants is the dependent variable because it is the outcome or result that is being measured and observed. The independent variable in this experiment is the different concentrations of salt water being used to water the plants. Qualitative data refers to non-numerical observations, so it is not the correct answer in this case.Rate this question:
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- 25.
"What effect does temperature have on plant height?" is an example of a conclusion.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The given statement is not an example of a conclusion. It is actually a question about the effect of temperature on plant height. A conclusion is a statement that is reached after analyzing data or evidence. In this case, the statement is a question, not a conclusion.Rate this question:
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- 26.
The manipulated variable is purposely changed to test a hypothesis.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement is true because in an experiment, the manipulated variable is intentionally altered or changed by the researcher in order to observe the effect it has on the dependent variable. This is done to test a hypothesis or to determine the cause-and-effect relationship between variables. By manipulating the variable, the researcher can control and manipulate the conditions of the experiment to gather data and draw conclusions.Rate this question:
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- 27.
Gram is the unit used to measure the mass of an object.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Gram is indeed the unit used to measure the mass of an object. The gram is a metric unit of mass, and it is commonly used in scientific and everyday measurements. Other units of mass, such as kilograms and pounds, are also used, but the gram is one of the most commonly used units for smaller objects.Rate this question:
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- 28.
The hypothesis is the curved surface of a liquid.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The hypothesis is not the curved surface of a liquid. A hypothesis is a proposed explanation or prediction that can be tested through experimentation or observation. It is a statement that can be either true or false, but it is not related to the curved surface of a liquid.Rate this question:
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- 29.
John is following the steps of his procedure and writing data in his data table. What step of the scientific method is he in right now?
- A.
Step 1
- B.
Step 2
- C.
Step 3
- D.
Step 4
- E.
Step 5
Correct Answer
C. Step 3Explanation
John is in Step 3 of the scientific method, which is collecting and analyzing data. In this step, he is writing data in his data table, which involves gathering information and organizing it for further analysis. This step is crucial for drawing conclusions and making interpretations based on the collected data.Rate this question:
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Mar 21, 2023Quiz Edited by
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