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

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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