8th Grade Amplify Concepts

Fill in the blank: Earth's outer layer is made of hard, solid ________.

• rock

• metal

• soil

• sand

Fill in the blank: Earth's outer layer is divided into sections called ________.

• plates

• continents

• crust

• sectors

Fill in the blank: Geologists look for patterns in landforms and in geologic events in order to better understand ________.

• Earth

• Mars

• Venus

• Mercury

Fill in the blank: The plates of Earth's outer layer ________.

• move

• do not move

• remain stagnant

• are fixed

Fill in the blank: Earth's plates move on top of a soft, solid layer of rock called the ________.

• mantle

• crust

• lithosphere

• outer core

Fill in the blank: At divergent plate boundaries, rock rises from the mantle and hardens, adding new solid rock to the edges of both ________.

• plates

• continents

• fault lines

• islands

Fill in the blank: At convergent plate boundaries, one plate moves underneath the other plate and sinks into the ________.

• mantle

• crust

• outer core

• inner core

Fill in the blank: Earth's plates travel at a rate too slow to be experienced by ________.

• humans

• dinosaurs

• animals

• aliens

Fill in the blank: It takes a long time for Earth's plates to travel great ________.

• distances

• spaces

• areas

• regions

Fill in the blank: ________ dating is a method used to determine the age of rocks.

• Absolute

• Relative

• Radiometric

• Fossil