Asking a question
b.
Evaluating a promotional claim
c.
Adjusting a conclusion
d.
Determining a logical conclusion
The step that the student just completed in the situation given above is asking a question.
As the student noticed that consumption of soda deceases their energy level, he asked the question to this why does this happens? this was the first step of using critical thinking skills to ask a question first analyze it and then perform and witness some experimental observations and come out with the conclusion.
But in this given example he just completed the first step of asking question. Therefore, the answer is asking a question which is option A.
The scientific method is carried out in several stages:
1. Observation,
2. Determine the problem
2. Data, collect information
3. Hypothesis
4. Experiments
5. Analysis
6. Conclusion
7. Compilation of laws or theories
In the context of the problem, students will experiment to study the effect of
So students issue a question which is why can affect their energy, Thus students have made the first 2 steps in the scientific method :
1. Observation of and the human's energy level,
2. Determine the problem that will be the basis of student research, namely the influence of the human's energy level.
Indirectly this student has obtained 2 variables to be examined, namely variable and human energy level, which can be changed according to conditions, which are chosen as fixed variables and which ones are independent variables.
So that the next step is collecting data and so on can be done immediately
If we look at other answer choices :
B. Evaluating a promotional claim
This stage is done after the results of the research have been obtained so that students can submit an evaluation of their learning outcomes
C. Adjusting a conclusion
This stage will be obtained after students have completed the analysis of the experimental data
So the most appropriate answer is A.Asking a question
the Scientific Method
scientists use the scientific method
the purpose of the scientific method
Keywords: scientific method, fixed variable, independent variable, asking a question, human energy level
The correct answer is
C. Negative ions are attracted to the anode.
Examples of gases that can be found at home include carbon monoxide, chlorine, ammonia, hydrogen, nitrogen, and sulfur oxides.
In conclusion, carbon monoxide is gotten when we burn wood, charcoal, fuel, etc.
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(2) the total number of protons in the atom, only
(3) the total number of protons and the total number of neutrons in the atom
(4) the total number of protons and the total number of electrons in the atom
Answer;
(4) the total number of protons and the total number of electrons in the atom
Explanation;
-Atomic number is the number of protons in the nucleus of an atom. An atom is made up of energy shells and the central nucleus. The energy shells contains electrons that are negatively charged while the nucleus contains protons (positively charged) and neutrons (neutral).
-In a neutral atom, the number of protons and electrons are equal, thus the atomic number would indicate the number of electron and protons in an atom. The sum of protons and neutrons on the other hand gives the mass number.
(2) the activation energy of the exothermic reaction
(3) the difference between the potential energy of the products and the potential energy of the reactants
(4) the sum of the potential energy of the products and the potential energy of the reactants
Answer: The correct answer is Option 3.
Explanation:
The net energy absorbed or released in a chemical reaction is known as the total enthalpy change of the reaction. It is written as
The formula used to calculate total enthalpy of the reaction is:
where,
= Potential energy of the products
= Potential energy of the reactants
Hence, the correct answer is Option 3.