CP Bio - Midterm Exam '23

Why do scientists use the scientific method?

• To make sure they get credit for their discoveries.

• To make sure their results are valid and can be performed by other scientists.

• So that other scientist don't get mad at them

• Because they are bored.

Which of the following would be considered quantitative data?

• Color
• Smell
• 6.84 cm
• texture

What is the part of the experiment that is left alone or “natural", and is used to compare back to?

• Independent Variable
• Dependent Variable
• Control Group
• Experimental Group 

What is a factor that the experimenter has full control over and changes to see what happens?

• Dependent Variable
• Independent Variable
• Control group 
• Hypothesis

What is a factor that changes because of what the experimenter does?

• Dependent Variable
• Independent Variable
• Control Group
• Hypothesis

________________________ observations involve qualities or characteristics that can be observed with the senses, but not measured or counted.

• Qualitative

• Quantitative

• Theoretical

• Scientific

A student hypothesized that robins prefer large birdhouses to small ones. He build four birdhouses of different sizes to test his hypothesis. What was the independent variable in the students study?

• The size of the birdhouse
• The number of birds in the house
• The location of the birdhouse
• The season of the year

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what is the dependent variable?

• Type of plant
• Water, apple juice, milk
• Plant growth
• Color of the plant's leaves

When making a graph, what axis should the independent variable always be?

• X-axis

• Z-axis

• Y-axis

• I-axis

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate
• type of exercise
• amount of exercise
• time of day exercise occurs