Show:
Volcanoes
Earthquakes
Rocks and Minerals
Ring of Fire
The Ocean Floor
100
Volcano
What is an opening in Earth's crust through which magma escapes
100
mantle
What is the layer beneath the crust?
100
igneous rocks
What type of rock is formed when magma rises to the surface and forms new crust?
100
equator
What is an imaginary line that circles the globe?
100
trench
What is a deep valley found in the ocean?
200
vent
What is a weak area in the rock that becomes an opening?
200
earthquake
what type of earth process occurs at fault zones?
200
inner core
What is the innermost layer of the Earth?
200
latitude
What is a line or distance from the equator that measure north and south?
200
mid-ocean ridge
What is an underwater mountain range located midway between two continents?
300
crater
What is the circular depression or hole formed by eruptions of the volcano?
300
seismograph
What is an instrument used to detect and record the presence of energy waves produced by an earthquake?
300
mineral
What is a naturally occurring solid element or compound with specific properties?
300
prime meridian
What is the longitude of 0 degrees and runs through Greenwich, England.
300
subduction
What happens at a trench when sections of moving crust come toward each other; one section sinking beneath the other?
400
lava
What is the magma that reaches the surface and cools?
400
Richter scale
What is a scale from 1 to 10 used to represent the magnitude or strength or an earthquake?
400
rock
What is a hard, naturally formed mass composed of many different grains of minerals that are fused, cemented, or bound together?
400
Ring of Fire
What is the pattern of earthquakes and volcanoes that are located all around the edge of the Pacific Ocean?
500
igneous rocks
What forms when magma from the mantle rises toward the Earth's surface and cools?
500
fault
What is a break in rock?
500
fossils
What are the remains, impressions, or evidence of once living things preserved in rock?
500
longitude
What measures east and west, sometimes referred to as meridians?
500
sea floor spreading
What occurs as new crust forms at the mid-ocean ridge and slowly moves sideways toward trenches where it sinks into the mantle and melts?