Cycles and Earth's Changes - PRACTICE

Which of the following causes Earth's tectonic plates to move?

• Energy from the Sun
• Magnetic Pole Reversal
• Convection currents in the mantle
• Faults in Mountain Ranges

Which of the following is the name of the ancient supercontinent formed 28 Million Years ago.

• Pangea
• Gondwanda
• Laurasia
• Neverland

The theory that says Earth's continents once made up an ancient supercontinent, and have been drifting apart ever since, is called the theory of...

• Pangea
• Plate Tectonics
• Natural Selection
• Gravity

Mountains are created when....

• Two continental plates collide
• Two oceanic plates pull apart
• An Oceanic plate subducts under a Continental Plate
• Two continental plates pull apart

The thin and coolest layer of the earth is the ______________

• crust

• inner core

• mantle

• outer core

The thickest layer of the earth is the __________________

• crust

• inner core

• mantle

• outer core

The most dense layer of the earth is the ______________

• crust

• inner core

• mantle

• outer core

This layer of Earth is a mix between solid and liquid

• crust

• inner core

• mantle

• outer core

Where is the point on the Earth’s surface directly above the focus of an earthquake?

• Epicenter
• Fault
• Hypocenter
• Tremor

Which scale measures the intensity of the ground movement?

• Mercalli Scale
• Richter Scale
• Seismogram Scale
• Bernoulli Scale