OTTER2 Rocks

Select a mode, choose one or more of the available rock groups, then click the Begin button to start the quiz.

Study mode shows all rock samples in the selected groups, without a time limit. Graded answers are displayed for a longer time. Use this mode to initially learn the rocks and their properties.

Authentic mode shows 10 rock samples randomly chosen from the selected groups, without a time limit. Graded answers are displayed for a brief time. This closely represents the sample portion of the in-class exam.

Challenge mode shows only three samples, each for up to 40 seconds.

Once begun, a series of hint buttons will appear along the side or top of the screen. Clicking on the buttons gives a yes (green circle) or no (red X) reply for each hint (e.g. salty, reactive, hardness).

The center of the screen has a photograph of the sample.

Below the photograph are questions and choices. Click on one answer for each question. When the time has expired or the Next button is clicked, the selections will be graded. Only correct answers gain a point.

After grading, correct answers are bold and green. Incorrect answers are stricken through and red. This feedback is shown for a moment before the next sample is presented.

Below the selection choices are Points (current score), Remaining (number of samples yet to see), and the countdown timer.

An Online Test Review for the rock exam in Scottsdale Community College's GLG103 course. Use this app to study for the upcoming rock test in the GLG103 laboratory.

Comments, questions, compliments, and criticisms can be sent to Sean Robinson.

Source code and images copyright 2010,2016,2017,2018 by Scottsdale Community College

SCC source code written by Sean Robinson

Photos by Sean Robinson

Rock matching info copyright 2010 by Betsy Ivester

OtTeR2 gratefully utilizes jQuery, jQuery UI, circle-progress, jCanvas, jQuery.extendext, lscache, and RoundDown (a local fork of Countdown 360) to ease development and add features. Testing uses QUnit and jquery-simulate.