Volcanoes: Earth's Fiery Forces
Explore the science of volcanoes, including types, formation, and effects, with this comprehensive Grade 7 science worksheet.
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Volcanoes: Earth's Fiery Forces
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Read each question carefully and answer to the best of your ability. Use complete sentences for short answer questions.
1. What is the molten rock found beneath Earth's surface called?
Lava
Magma
Ash
Pumice
2. Which type of volcano is characterized by broad, gently sloping sides and is built by many layers of fluid lava flows?
Cinder cone volcano
Stratovolcano (Composite)
Shield volcano
Caldera
1. The opening at the top of a volcano through which volcanic materials erupt is called the .
2. A volcano is currently erupting or has erupted recently and is expected to erupt again.
3. The Ring of Fire is a major area in the basin of the Pacific Ocean where many and earthquakes occur.
1. Explain the difference between lava and magma.
2. Describe at least two ways volcanoes can impact the environment and human society.
1. All volcanoes erupt explosively.
True
False
2. The eruption of a volcano can release gases that contribute to climate change.
True
False
Examine the diagram of a volcano cross-section below and answer the questions.
1. Label the magma chamber in the diagram.
2. What is the name of the pipe-like structure through which magma rises?