Investigación Científica. A logical, problem- solving technique Scientific Inquiry Qué es? Una...
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Transcript of Investigación Científica. A logical, problem- solving technique Scientific Inquiry Qué es? Una...
Investigación Científica
A logical, problem-solving technique
Scientific Inquiry
Qué es?
Una técnica lógico, la resolución de problemas
Steps Of Scientific Inquiry
Problem Hypothesis Materials Procedure Data/Results Conclusion
• Problema • Hipótesis • Materiales • Procedimiento • Datos / Resultados • Conclusión
Copy onto foldable
Scientific Inquiry
Problem Hypothesis
Variables Materials & Procedures
Data/Results Conclusion
A logical, problem-solving technique
Scientific Inquiry
Qué es?
Una técnica lógico, la resolución de problemas
Hint To Remember The Steps
People Problem
Hate Hypothesis
Mud Materials
Pigs Procedure
Don’t Really Data/Results
Care Conclusion
• Problema• • Hipótesis
• Materiales
• Procedimiento
• Datos / Resultados
• Conclusión
Problem (Problema)
•A questionquestion that compares variables.
•What you want to find out?
–Example: Does the drop height affect the bounce height of a superball?
pregunta compara las variables
¿qué quieres saber?
What Are
• Something that changes.cambios
Look back at the last example:
Example: Does the drop height affect the bounceheight of a superball?
What two things are changing?
Drop height, bounce height
These are the VARIABLES.
What is an Independent Variable?
(Also called Manipulated Variable)
We manipulate, or change it, on purpose. manipular o cambiar
variables independientes
Example: Does the drop height affect the bounce height of a superball?
Independent Variable in example: Drop heights used (we change them on purpose)
What is a Dependent Variable?
(Also called Responding Variable)
Changes depending on some other factorsVariable we are trying to find out (data you are collecting) cambios en función de otros factores
variables dependientes
Example: Does the drop height affect the bounce height of a superball?
Dependent Variable in example: bounce heights (We don’t know them before we start.)
What is a Constant?
Does not change for the duration of an experiment
Known as the controlled variable.
no cambia
constante
Example: Does the drop height affect the bounce height of a superball?
One constant in example: superball (Does not change during the experiment - same ball would be used)
Hypothesis
•EDUCATED GUESS
•What you think the results of the experiment will show
conjetura
¿Qué crees que los resultados del experimento se muestran?
Example: If a superball is dropped from increasing heights then the bounce heights will also increase because…(explain why)
Materials
•List of items used to conduct an experiment (Don’t list pencil and paper unless part of experiment.)
•Be sure to list quantities and sizes of equipment (metric)
lista de elementos utilizado para llevar a cabo el experimento
cantidades y tamaños
Procedure
•Numbered steps of the experiment that will be followed to answer the problem
Note: An experiment can only test one independent variable at a time.
Note: To ensure reliability and validity, repeated trials should be done.
pasos
Data/Results
•Observations•Graphs•Drawings•Pictures•Charts•Tables•And so on….
Conclusion
•A statement that presents the findings of the experiment using specific data
•Answers the problem
•Explains what the data shows (data should support conclusion)
•States if the hypothesis was supported or rejected
presentar los resultados a partir de datos
problema respuesta
explicar
Why Do We Use Graphs?
•Graphs help us visualize numerical data.
•There are several different types of graphs:–Bar graphs –Pie graphs (Circle graphs)–Line graphs
gráficos nos ayudan a visualizar datos numéricos
gráficos de barras
gráficos de tarta
gráficos de líneas
Bar Graphs
Bar graphs are used to show a comparison of multiple objects.
gráficos de barras
comparación de varios objetos
Pie Graphs
Pie graphs are used to compare the parts of a whole.
gráficos de tarta
comparar partes de un todo
Line Graphs
Line graphs are used to the show the relationship between variables. Many times line graphs show change over time.
gráficos de líneas
cambio en el tiempo
relación entre las variables
Graphing Variables
• The Independent Variable (Manipulated Variable) is graphed on the X-Axis
• The Dependent Variable (Responding Variable) is graphed on the Y-Axis
las variables gráficas
Remember:
• DRY MIX
X-axis
Y-axis
Manipulated Variable
also called
Independent Variable
Dependent Variable
also called
Responding Variable
1. The Independent Variable is: ?a.Temperatureb.Timec.Solubility 2. The Dependent Variable is: ?a. Temperatureb. Timec. Solubility
3. The variable that changes depending on some other factors ?
A. Independent VariableB. Dependent VariableC. Controlled Variable
4. A variable that does not change for the duration of an experiment. ?
A. Independent VariableB. Dependent VariableC. Controlled Variable
5. What you think the results of the experiment will show?
A. ProblemB. HypothesisC. ConclusionD. Data
6. Is an opinion, or conclusion, based on
observed facts.?
A. ObservationB. InferenceC. DataD. Conclusion