1. Define stratosphere and ascent as used in the article.

2. What did four students from the Meteotek school in Spain accomplish recently?

3. How were the students able to follow the progress of their balloon?

4. Why was the helium weather balloon that carried the equipment expected to expand significantly?

5. At what altitude did the balloon lose its inflation?

OPTIONAL:  Email your reaction to the students' experiment to team leader Gerard Marull Paretas at gerardmarull@gmail.com.
Remember to identify yourself (name, school, state, country), name the article you are commenting on, and that you read it at StudentNewsDaily.com. Be clear, concise and polite.