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8th ScienceUnit2
8th grade Science Unit 2 SECTION 3 EARTHQUAKES AND VOLCANOES
Question | Answer |
---|---|
LIST AND LABEL THE 3 TYPES OF FAULTS AND THE STRESS ACTING ON THEM. | Normal fault, Reverse fault, Strike slip fault |
WHICH TYPE ARE THE SAN ANDREAS FAULT SYSTEMS LOCATED IN LOS ANGELES, CALIFORNIA? | strike slip fault or transform boundary |
SOME MOUNTAINS ARE STILL FORMING TODAY DUE TO THE INTERACTION OF 2 PLATES, WHY?`` | The plates are constantly, if not very slowly, moving. In this case, 2 continental plates are colliding and pushing up the crust |
WHAT TECTONIC PLATE DO WE LIVE ON? | North American plate |
WHERE IS THE ACTIVE CHAIN OF VOLCANOES LOCATED? (NAME AND AROUND WHAT PLATE) | Ring of fire; it is located on the rim of the pacific plate |
WHAT IS AN EARTHQUAKE AND WHY IS IT SO DANGEROUS? | A sudden and violent shaking of the ground, sometimes causing great destruction, as a result of movements within the earths crust or volcanic action. |
WHAT IS A P-WAVE? (Draw its movements on a separate piece of paper) | A body wave that wave that moves with the direction of the wave |
WHAT IS A S-WAVE? (Draw its movements on a separate piece of paper) | A body wave that moves prependicular to the direction of the wave. |
WHAT IS A SURFACE WAVE? (draw its movements on a separate piece of paper) | Raleigh and Love waves a wave that travels along the surface comes after the P and S waves, usually more destructive with larger amplitudes and longer wavelengths. |
RANK IN ORDER OF SPEED(fastest to slowest)P, S, Surface | P-wave, S-wave, Surface wave |
WHAT IS A SEISMOGRAPH? | Instrument used to register earthquake waves and records the time that each arrives. |
WHAT IS LIQUEFACTION? WHY IS IT DANGEROUS? | Occurs when wet soil acts more like liquid during an earthquake; dangerous because it can catch you off guard and can cause buildings to sink and shift around. |
WHAT ARE THE 3 TYPES OF VOLCANOES? Briefly draw and describe each on separate piece of paper, | Shield Volcano, Cinder Cone Volcano, Composite Volcano. |