sentence: Some scientists drill ice cores to find out about the weather long ago.
sentences_before: People of the Antarctic live in there for a short time to learn more about Antarctica, so most of the people who live there are scientists. They study the weather, animals, glaciers, and the air around our earth.
sentences_after: People who work in the Antarctic must be very careful, because a blizzard can start any time and any where. When they go far away from their shelter, they must always take lots of food just in case.
concept_name: scientist
headings: Antarctica History of its discovery People
categories: Gondwana