Tectonic plates represent pieces of the Earth's crust that touch and move, resulting in earthquakes and volcano formations along these borders. Before Mount St. Helens erupted in 1980, it had a pointed top.

It's an active volcano but has only had two major periods of eruption in the last 1,500 years.Washington State's Mount Rainer and Mount St. Helens are both composite volcanoes. Composite volcano is very different from the shield volcano. When one erupts, it goes off like fireworks on the 4th of July.The lava, or hot melted rock, that comes out of a composite volcano during an eruption is thick and oozes slowly down the sides of the volcano like molasses dripping down the side of a bowl. 1. Here are some interesting facts about composite …

first two years of college and save thousands off your degree. The magma forming this lava is … This thick lava can't travel far before it cools, which helps give the composite volcanoes their distinct shape.Composite volcanoes are tall and steep. Dr. Gillaspy has taught health science at University of Phoenix and Ashford University and has a degree from Palmer College of Chiropractic.Would you like to be a mountain climber when you grow up? These types of volcanoes typically eject lava in a slow-moving way, like thick water flowing out of a fountain, instead of plumes and pyroclastic flows. Volcanoes first form when a vent in the Earth's crust reaches down into pockets of molten rock called magma. Formation of a composite volcano. While this type of volcano might have only one vent, it also might be a composite of several vents.Composite volcanoes have steep slopes, forming a basically symmetrical shape. That’s why the flowing lava will harden and cool because it reaches far away area.Facts about Composite Volcanoes 2: the amount of silica.The amount of silica on the magma is in high to intermediate amount. In most cases, composite volcano is characterized with the effusive eruptions, periodic explosive eruption and steep profile. For example, the eruption of Mount Pinatubo rocked the Philippines in 1992; Mount Fuji in Japan erupted in 1708; and the ancient Roman city of Pompeii was buried in a thick layer of ash when Mount Vesuvius exploded in 79 AD.Explosive is a great way to describe the eruption of a composite volcano. Services.Visit the Earth Science for Kids page to learn more.Biology Lesson Plans: Physiology, Mitosis, Metric System Video Lessons,Lesson Plan Design Courses and Classes Overview.How Do I Use Study.com's Assign Lesson Feature?Airport Ramp Agent: Salary, Duties and Requirements,Personality Disorder Crime Force: Study.com Academy Sneak Peek.Decisions Revisited: Why Did You Choose a Public or Private College?Diary of an OCW Music Student, Week 4: Circular Pitch Systems and the Triad,Types of Cancer Doctors: Career Overview by Specialization,Education Writer: Job Description & Career Info,Top Degree Programs for Health Administration - Fort Lauderdale, FL,Study.com Scholarship Terms and Conditions,Top School in San Francisco for Programming Courses,Associate of Graphic Arts Degree Overview,Internet Specialist Trade School Diploma Program Overview,Bachelor of Fine Arts BFA Multimedia Production and Design Degree,Masters in Training and Performance Improvement Degree Info,Overview of Astronomy for Elementary School,Branches of Science for Elementary School,Overview of Geology for Elementary School,Understanding Matter for Elementary School,Spheres of the Earth for Elementary School,High School Chemistry: Homework Help Resource,NY Regents Exam - Physics: Tutoring Solution,High School Physical Science: Tutoring Solution,High School Physical Science: Help and Review,Glencoe Earth Science: Online Textbook Help,High School Physics: Homeschool Curriculum,High School Chemistry: Homeschool Curriculum,Patient Discharge Process: Discharge Summary,How to Identify Thermal & Radiation Hazards,Explaining & Analyzing Processes of Life in Biology: Practice Problems,Quiz & Worksheet - Dermatome Distribution,Quiz & Worksheet - Allosteric Site of the Enzyme,Physical Science - Sedimentary Rocks - A Deeper Look: Help and Review,Physical Science - Metamorphic Rocks - A Deeper Look: Help and Review,Physical Science - Volcanoes: Help and Review,Physical Science - Earthquakes: Help and Review,Physical Science - Weathering and Erosion: Help and Review,AACN Acute Care Adult-Gerontology Nurse Practitioner (ACNPC-AG): Study Guide & Practice,Biology 107L: Clinical Microbiology w/ Lab,CPA Subtest I - Auditing & Attestation (AUD): Study Guide & Practice,SHRM Certified Professional (SHRM-CP) Exam: Study Guide & Practice,Nursing Protocols for Emergencies & Unexpected Treatment Responses,Cultural & Religious Dynamics in Health Care.What Are Pandemic Pods & Why the Controversy?4 Reading Comprehension Activities Your Students Will Enjoy,4 Ways to Encourage Student Interest in STEM,5 Ways to Bring Digital Citizenship Into the Classroom,Virtual Reality & Education: Ideas for Your Classroom,Using Pop Culture in Your Lessons to Engage Students,4 Ways to Reinvent Traditional Group Projects,Determining Inputs & Outputs of Functions,How to Use Stock Cards for Sales & Purchases,Working with Families to Promote Good Childcare Practices,Leadership with Critical & Reflective Thinking in Nursing,Factors in the Misidentification of Gifted Students,Quiz & Worksheet - Understanding Data Marts,Quiz & Worksheet - Aluminum Chloride Overview,Quiz & Worksheet - The Sirens of Ancient Greece,Quiz & Worksheet - Understanding Object Persistence,Flashcards - Real Estate Marketing Basics,Flashcards - Promotional Marketing in Real Estate,What is Common Core?