volcanoes, and earthquakes

The weak spot in the crust where lava erupts

• lava pit

• volcano

• explosion place

• plate boundarie

The 3 types of plate boundaries

• Convergent, divergent, transform

• up, side, left

• Convergent, divergent, up

• strike slip, fault, crust

Three types of seismic waves

• primary waves

• secondary waves

• surface waves.

• body waves

Three types of faults

• Normal, Reverse, strike-slip

• up down left

• side

• None of the above

the point on the earth's surface vertically above the focus of an earthquake.

• middle

• epicenter

• the eye of the earthquake

• center

How many seismographs are needed to determine the epicenter of an earthquake

• 10

• 7

• 3

• 0

What is a break in the rock layers called?

• Earthquake
• Epicenter
• Fault
• Focus