Question

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when the results of an experiment are shown in a graph, the independent variable appears on the x-axis and the dependent variable appears on the y-axis
below are problems that will be solved using the scientific method. identify the independent and dependent variables.

problem	independent variable	dependent variable
how does caffeine effect the heart rate of daphnia?	its being changed to observe its effect	heart rate of daphnia
how does temperature effect the viscosity of fluids?	temperature	viscosity of fluids
who can read backwards faster, boys or girls?	gender boys vs girls the	reading backwards speed the performance being measured
does weather... visibility of stars?	varied	visibility of stars the outcome being measured
how does the size of eggs laid by a chicken change throughout its life?	chickens life stage

Explanation:

To solve for the independent and dependent variables in the problem "How does the size of eggs laid by a chicken change throughout its life?":

Step 1: Identify the Independent Variable

The independent variable is what we manipulate or what changes independently. In this problem, we are looking at how the chicken's life stage (e.g., young, adult, old) changes, and we observe the effect on egg size. So the independent variable is the chicken’s life stage (since we are examining how egg size changes as the chicken ages/ progresses through life stages).

Step 2: Identify the Dependent Variable

The dependent variable is what we measure (it depends on the independent variable). Here, we measure the size of the eggs laid by the chicken, which depends on the chicken’s life stage. So the dependent variable is the size of the eggs laid by the chicken.

For the table:

Problem	Independent Variable	Dependent Variable

Final Answer (Filled Table Row):

• Independent Variable: Chicken’s life stage
• Dependent Variable: Size of eggs laid by the chicken

Answer:

To solve for the independent and dependent variables in the problem "How does the size of eggs laid by a chicken change throughout its life?":

Step 1: Identify the Independent Variable

The independent variable is what we manipulate or what changes independently. In this problem, we are looking at how the chicken's life stage (e.g., young, adult, old) changes, and we observe the effect on egg size. So the independent variable is the chicken’s life stage (since we are examining how egg size changes as the chicken ages/ progresses through life stages).

Step 2: Identify the Dependent Variable

The dependent variable is what we measure (it depends on the independent variable). Here, we measure the size of the eggs laid by the chicken, which depends on the chicken’s life stage. So the dependent variable is the size of the eggs laid by the chicken.

For the table:

Problem	Independent Variable	Dependent Variable

Final Answer (Filled Table Row):

• Independent Variable: Chicken’s life stage
• Dependent Variable: Size of eggs laid by the chicken