When I have an opportunity to speak with the public about rocks, I like engaging them in activities. From kids to industry professionals, I need to appeal to their capabilities. Here are 2 examples of activities that I created. One is for elementary students, and the other is for high school or above.
Each activity is tied to the local mining industry. Activity 1 works in unison with a professional map by the Saskatchewan Geological Survey. Complementing the written activity, I bring rock samples from Saskatchewan. I want the students to appreciate that geologists find the rock, engineers mine the rock, and then the rocks are processed into materials the students will be familiar with. As much as some kids may not like their vegetables, they are reluctantly familiar with their necessity and potash is a key ingredient in the fertilizer that grows them. Gold is used in the circuits of their favourite electronic devices which could be powered by uranium and coal, and everyone knows diamonds especially when they mine for these themselves in Minecraft©. We think of oil in cars, but its use is more versatile such as in plastics like the famous Lego© bricks.
Activity 2 builds on the periodic table. Many of the elements come from rock, and I actually show samples in the form of coins of 
several elements. This reaffirms their ability to use the periodic table that they learned in science classes. But I circle back to the fact that everything we use comes from somewhere. In this case, the questions apply to Saskatchewan and as an engineer, I can connect this to industry and their potential for careers in engineering and science.
Both activities are licenced with a creative commons , CC BY license. “This licence allows others to distribute, change, remix, and build upon your work, even commercially, as long as they credit you for the original creation. This licence gives anyone using your work the most permissions”. I want students to learn so I am providing open access to my activities so they can appear in classrooms across the province.