Abeka 4th Science Test 7 P1 L100

The soil-horizon layers are humus, topsoil, subsoil, and ________.

• clay
• sand
• gravel
• bedrock

The layer of earth beneath the crust is called the ________.

• core
• mantle
• crustal layer
• outer core

To test the hardness of rock, geologists use the ________ test.

• scratch

• Vickers

• Brinell

• fracture

The two kinds of crust are ___________ and oceanic.

• continental

• mantle

• lithospheric

• tectonic

A minor earthquake is called a(n) __________.

• quake
• tremor
• aftershock
• seismic wave

A(n) ________ has never been found in the fossil record.

• ocean animal

• transitional form

• reptile

• land-dwelling mammal

Tags

NGSS.MS-LS4-1

Matter that settles to the bottom or sides of a body of water is __________.

• rock
• algae
• granite

• sediment

The temperature of the earth _______ as its layers deepen.

• fluctuates
• increases
• remains constant
• decreases

A rock or mineral that can reflect light has _________.

• opacity
• luster
• translucence
• clarity

Pumice, obsidian, and granite are _______ rocks.

• sedimentary
• igneous
• metamorphic
• volcanic