1. Fieldwork: This is the bread and butter of geology. Geologists spend a lot of time outdoors, examining rock formations, collecting samples, and mapping geological features. They might use tools like compasses, GPS devices, and rock hammers to gather data.

2. Lab Analysis: After collecting samples in the field, geologists analyze them in a lab. This might involve identifying minerals and fossils, measuring chemical composition, or determining the age of rocks.

3. Data Analysis and Interpretation: Geologists use their fieldwork and lab analysis data to create models and interpret geological processes. They might create maps, analyze seismic data, or develop theories about the Earth's history.

These activities are often interwoven, and a geologist may spend time on all three in the course of their work.