Please suggest and write an appropriate procedure (list of instructions) for your barnacle feeding rate investigation tomorrow. Think about the activity we did in class today that focused on the importance of writing good instructions that others can follow. Consider the steps that should be taken by your group to prepare and carry out your experiment, as well as the materials that will be needed to do so. Think about the number of trials you will perform and how you will collect your data. A strong experimental procedure is detailed, well-ordered, and describes quantities. It should be simple and easy to follow. Do your best! You will have time to share, combine, and modify your procedure with your group tomorrow in class.
The manipulated variables and materials for groups in each section are listed below.
Section 3:
Sean, Graham, Eliana: Type of food (Materials: 2 types of fish food, barnacles, Puget Sound water, glass containers)
Charlie, Gabriel, Nirja: Water temperature (Materials: Puget Sound water, ice bath, hot plate, thermometer, barnacles)
Sarah, Molly, Harvest: pH level (Materials: pH buffers, pH strips, barnacles, glass containers Puget Sound water)
Edith, Nina, Willa, Sophie: Amount of light (Materials: 3 full-spectrum bulbs, 3 lamps, barnacles, Puget Sound water, glass containers)
Kiri, Nathan, Eleanor: Noise pollution level (Materials: barnacles, Puget Sound water, glass containers, laptop, YouTube video of a running boat engine, speakers)
Section 4:
Jonah, Ella, Gabby: Amount of food (Materials: 1 type of fish food, barnacles, glass containers, measuring spoons, Puget Sound water)
Leila, Alayna, Serenne: Amount of light (Materials: glass containers, barnacles, Puget Sound water, light, something to provide shade)
Finn, Addie, Matt, Nick: Concentration of silt (Materials: glass containers, barnacles, silt, Puget Sound water, pencil, paper)
Poppy, Kassie, Alex: pH level (Materials: pH buffers, pH strips, barnacles, glass containers Puget Sound water)
Francis, Julien, Quinn: Barnacle density (Materials: rocks with different barnacle densities, glass containers, Puget Sound water)
