MC 0.1 Scientific Method

How do we call the possible answer or explanation to a question based on prior knowledge and observations?

• Observation
• Experiment
• Hypothesis
• Conclusion

What is an independent variable?

• The variable manipulated or controlled by the scientist.
• The variables that the scientist keeps constant, which allows them to attribute the results to the independent variable alone.
• The variable that the scientist is measuring or observing.
• The variable that will always be represented on the Y axis.

What is the independent variable in the following scenario? "The blood pressure of a soldier is measured every hour during one day."

• The blood pressure.
• The soldier
• The data of blood pressure.
• Time (hours).

The following graph represents the height of a person (ESTATURA) throughout his life. At what age he reaches the highest height?

• 15
• 20
• 25
• 40

Josie was performing an experiment where she grew the same kind of tomatoes in the same soil and amount of water. She sat one in the sun and one in a closet for 14 days. What is the independent variable in Josie's experiment?

• Tomatoes
• Sunlight
• Soil
• Water

The information you collect while doing your experiment is called

• Data
• Observation
• Conclusion
• Hypothesis

What is the dependent variable in this graph?

• Time (measured in months)
• The number of bicycles sold
• The months from January to June
• The price of the bicycles sold

Observing the data plotted on this graph we can conclude that...

• Chocolate is a flavor preferred by Males.
• There are more female than male who prefer Strawberry flavor.
• There are more female than male who prefer Vanilla.
• There are more male than female who prefer Vanilla.

What is the name of this object that you can find in the laboratory?

• Graduated cylinder
• Beaker
• Pipette
• Test tube

What is the name of this object that you can find in the laboratory?

• Beakers
• Test tubes
• Erlenmeyer flasks
• Pipettes