Egg+shells+'n+Vinegar

The 10th graders added dry eggshells to vinegar and measured how quickly gas was released. They were also given the challenge of making one liter of this gas as quickly as possible.

Each group's methods and results of the investigations are described on the following pages.


 * Group Members || Variable being investigated ||
 * Shaun, Iikka, Stephen || Amount of Stirring ||
 * SooAh and Maaike || amount of crushing of eggshells ||
 * David and Andy || Degree of Crushing ||
 * Joanna and Maurice || Acid Concentration ||

Directions for 10th graders and Iikka. Each group should write the name of their independent variable in the table above, create a page with that name, and create a link to that page from the table.
 * 1) The amount of page editing must be divided equally among the group members.
 * 2) The method used for the experiment, including amounts of each material, must be described. The independent and dependent variables must be identified.
 * 3) A picture of the experimental set-up should be shown on the page.
 * 4) A table including the data from the experiment must be made using the table feature in the editor bar.
 * 5) A graph of the data must be included, showing the volume of gas formed over time.
 * 6) A short paragraph must be included which describes and explains both the plan for and result of the attempt to make one liter of gas.

A rubric for this lab is shown below. Each member of the class will receive a separate grade.
 * Expectation Level || Computer skills || Manipulative skills || Scientific accuracy || Communication ||
 * exceeding ||  ||   ||   ||   ||
 * meeting || all the assigned tasks relating to the page are completed s || the procedures is carried out efficiently and safely, and the lab area is cleaned || the group shows care in collecting the data || the data tables, figures, and text accurately convey the work carried out in lab. ||
 * approaching ||  ||   ||   ||   ||
 * below ||  ||   ||   ||   ||