Grade 4 Chapter 2.2

What does a seismograph measure?

• Movement of Earth's surface

• Height of mountains

• Amount of lava produced by a volcano

• How far plates drift from one another

At which boundary type do earthquakes happen?

• Convergent

• Divergent

• Transform

Plates move apart at which type of boundary ?

• Convergent

• Divergent

• Transform

How far does North America move from Europe each year?

• 2 inches

• 2 miles

• 2 yards

• 2 centimeters

Molten rock that is UNDER the Earth's surface is called:

• Lava

• Magma

What does the Theory of Plate Tectonics suggest?

• The continents are slowly drifting away from one another

• The continents are resting on plates that are always moving

• The continents are separate now but will someday turn into a supercontinent

• The Earth's plates used to move but are now still

The center of an earthquake is called the:

• Core

• Plate

• Mantle

• Epicenter

Which layer of Earth is the largest?

• Inner core

• Mantle

• Outer core

• Crust

Which state is known for having a large number of earthquakes?

• California

• Texas

• Maine

• Nebraska

True or false? The Earth's inner core is liquid metal.

• True

• False