A Force on Earth

Volcanoes are all over the world. Some are active and some are not. Some, like Mount St. Helens, could erupt without much warning. Volcanoes are one of the forces on Earth that we live with but cannot control.

People in this village in the Philippines used umbrellas to protect themselves from ash. Nearby, Mount Pinatubo was erupting. Ash from the volcano darkened the sky.

People in this village in the Philippines used umbrellas to protect themselves from ash. Nearby, Mount Pinatubo was erupting. Ash from the volcano darkened the sky.

Key Vocabulary

  • force n., a great power in nature

Before You Move On

  • 1. Make Decisions If you lived near an active volcano, what would you do?

  • 2. Viewing Look at the picture. How can you tell that a volcano is erupting?