A supercontinent containing all of Earth's land that existed about 225 million years ago.

The place where two plates meet.

a tectonic plate boundary where two plates collide, come together, or crash into each other

boundary between tectonic plates in which the two plates move away from each other, and new crust is created between them

Boundary between two plates that are sliding past each other

The theory that pieces of Earth's lithosphere are in constant motion, driven by convection currents in the mantle

The portion of the earth's crust that primarily contains granite, is less dense than oceanic crust, and is 20-50 km thick

Thinner, more dense, younger crust, primarily basaltic, making ocean floor

The process that creates new seafloor as plates move away from each other at the mid-ocean ridges

The process by which oceanic crust sinks beneath a deep-ocean trench and back into the mantle at a convergent plate boundary.

a continuous elevated zone on the floor of all the major ocean basins and varying in width from 1000-4000km; the rifts at the crests represent divergent plate boundaries

a valley formed by the separation of tectonic plates

the region where an oceanic plate sinks down into the asthenosphere at a convergent boundary, usually between continental and oceanic plates

The movement of the tectonic plates is caused by

A mid-ocean ridge separates the Pacific and the Nazca plate off the western coast of South America. Which statement best describes the relative motions of the Pacific and Nazca plates?

Which of the following best describes how mountains change over time?

This is a satellite image of the Houston Ship Channel. Which point on this image will experience the most erosion?

How many peaks does this landform have?

Which direction is the river flowing on this topo map?

What height in meters must the student climb in order to reach the top of the hill? *Remember, the student is STARTING at POINT X.

How would expect this feature to change over time?

What caused the elevation to increase from Point A' to Point B' after Mount St. Helens erupted in 1980?

Air is warmer and less dense at the equator because the equator receives more____________________.

Which two cities are most likely to experience clear, dry weather?

Tim said that Chicago is most likely to experience rainy weather. Jennifer thinks that Dallas is most likely to experience rainy weather.

Which student is correct?

These symbols represent a/an ________

What type of weather is associated with a high pressure system?

What type of weather is generally associated with a low pressure system?

Which location is most likely experiencing warmer temperatures and higher humidity?

The map represents a satellite image of Hurricane Gilbert in the Gulf of Mexico. Each ‘X’ represents the position of the center of the storm on the date indicated.

Why did Hurricane Gilbert weaken between September 16 and September 18?

Select 2 other names for a hurricane.

Hurricanes are a very strong type of __________.

The sea water that starts a hurricane gets warm from ________________.