\"Your friend claims that sunlight affects the temperature of water\" For an exp

Question

"Your friend claims that sunlight affects the temperature of water"

For an experiment?

What is the Null and alternative hypothesis ???

1. Identify the Independent variable for your experiment.

2. Identify the Dependent variable for your experiment.

3. List at least 3 variables that you would hold constant in your experiment.

4. Now design the experiment: Identify and use at least five of the following lab equipment pieces to design your experiment.

Provide a brief description of the experiment. Include a description of the Control Treatment and the Experimental Treatment

Explanation / Answer

1.      Identify the Independent variable for your experiment.

Independent variable is the one that is altered by the examiner and the dependent variable responds to the changes in independent variable. The variable is what an examiner measures in an experiment.

Thus, the independent variable is, sunlight (exposure to sunlight) and duration of exposure

2.      Identify the Dependent variable for your experiment.

The dependent variable (measured in the experiment) is, the water temperature

3.      List at least 3 variables that you would hold constant in your experiment.

The constant variables include,

·         Volume of water

·         Place of exposure

·         Time of exposure

4.      Now design the experiment: Identify and use at least five of the following lab equipment pieces

Expose a constant volume of water to sunlight for a particular period of time and measure the change in initial and final temperature. Repeat the experiment without different exposure times.

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