Lesson Library
Every facet of earth science
Beginner
The Rock Cycle
How rocks transform between igneous, sedimentary, and metamorphic forms over deep time.
12 min4 sources 150 XP
Intermediate
Driving the Rock Cycle: Bowen's Series and Metamorphic Grades
Quantify the rock cycle — master the crystallization sequence that shapes all igneous rocks, and learn how index minerals act as buried thermometers recording depth and temperature.
18 min5 sources 240 XP
Beginner
Plate Tectonics Fundamentals
The unifying theory of geology — how Earth's surface is broken into moving plates.
18 min4 sources 200 XP
Beginner
Minerals vs. Rocks
Learn what defines a mineral and how geologists identify them.
10 min4 sources 120 XP
Beginner
Ocean Currents & the Global Conveyor
How heat, salt, and wind drive the circulation that shapes global climate.
15 min4 sources 180 XP
Beginner
Reading the Sky: Cloud Types
Identify the main cloud families and what they tell you about coming weather.
10 min4 sources 120 XP