Curated OER
What are Igneous Rocks and How are They Formed?
Crystals form before your very eyes! What sixth grader wouldn't enjoy this lesson on igneous rock formation? Using hot Salol, junior geologists observe the crystal formation process as the material cools. This comprehensive lesson plan...
Curated OER
Rocks Worksheet #2
Topping the page is a chart of crystal size and mineral composition of several different igneous rocks. Geology whizzes answer five multiple choice questions after analyzing the information in the chart. This is a simple, but sufficient...