Abeka Science: Earth and Space Test 6

Substance that makes up the majority of salt water

What is the main factor that affects the color of the oceans?

Why can icebergs float in seawater?

Large holes formed when huge chunks of melting glacial ice lodge in washed-out sediments

What gemstone consists of corundum with traces of iron or titanium that give the blue color.

Type of rock consists of smooth pebbles embedded in hardened sand or clay

In an experiment, a variable observed to determine the results is a dependent variable.

What is the way a light is reflected from the surface of a mineral?

What is any area of the seat that exceeds 6000 m in depth called?

What is a wave that grows taller and steeper as it travels to shore?

Slow downslope movement of soil and rock fragments.

Regions of the earth’s surface where limestone is exposed and abundant.

A huge, muddy valley that cuts into the deep ocean floor.

The idea that understanding modern geological processes is the key to understand earths history is known as what?

Volcano that is made of alternating layers of lava and ash

A device oceanographers use to measure the temperatures at different levels

Temperature and _______ determine the density of seawater.

A tide that occurs when there is one high tide and one low tide each day

Natural ridges formed when water flow causes sediments to drop along the edge of a river

Scientific term for the volume of the portion of the skull that includes the brain

The largest group of minerals which composes over 90% of the earth‘s crust.

Middle layer of the earth, between the crust and core

What term describes a fossil that extends through multiple strata?

Device that uses underwater sound waves

Top layer of soil which contains most of the organic substances and nutrients

Oceanographic tool charts currents far beneath the surface

A fossil used by evolutionists to date rock layers

Type of weathering that involves the breaking or peeling of rock layers

Underwater valley that gives a mid-ocean ridges the appearance of having twin mountain ranges

Circular coral-reef island that grows around an underwater volcano

What process of modifying a smooth slope into a series of level, stair-like steps to prevent erosion?

What are the circular paths that ocean currents move in?

Oceanographic tool that is a highly maneuverable robot

Large waves created by underwater disturbances

Which is thought to be the missing link in man’s evolution

Material carried by a stream

Deep cracks or fissures on the surface of a glacier

A device that has an open tube that is dropped to the sea floor to gain sediment samples.

Method of erosion prevention involves planting alternating strips of different types of crops.

Challenger deep is the deepest known point of the sea

What rock is formed when other rocks are “cooked” by heat and pressure?

Metal used as fuel for nuclear reactors

Which one is supposedly the missing link between amphibian and reptile?

Rip currents are dangerous currents formed when large amounts of water from a wave surge out to sea through a sandbar

A fault that occurs when rocks on one side of a fault are shoved on top of the other side of a fault