The two island groups are separated by the Mariana Trench, which is the deepest point in the world's oceans. The trench is about 11,000 feet (3,400 meters) deep at its deepest point.
Guam and the Philippines are both located in the tropics. The climate is warm and humid all year round. The average temperature in Guam is about 80 degrees Fahrenheit (27 degrees Celsius). The average temperature in the Philippines is about 82 degrees Fahrenheit (28 degrees Celsius).
Guam and the Philippines are both heavily populated. Guam has a population of about 165,000 people. The Philippines has a population of about 100 million people.
The majority of people in Guam and the Philippines are Roman Catholic. The official languages of Guam are English and Chamorro. The official language of the Philippines is Filipino.