Abeka 8th Science Test 6 EXAM p2

What is the very slow downslope movement of soil and rock fragments?

• Landslide
• Erosion
• Soil creep

• Avalanche

What are the circular paths that ocean currents move in called?

• Loops
• Circuits
• Swirls
• Gyres

What type of weathering involves the breaking or peeling away of rock into layers?

• Mechanical weathering
• Biological weathering
• Exfoliation weathering
• Chemical weathering

What type of tide occurs when there is one high tide and one low tide each day?

• Spring tide
• Semi-diurnal tide
• Neap tide
• Diurnal tide

What idea states that the fittest and strongest organisms are most likely to survive and reproduce?

• Natural selection
• Genetic drift
• Evolutionary adaptation
• Survival of the fittest

What is the deepest known point in the sea?

• Amazonal Trench

• Puerto Rico Trench
• Java Trench
• Challenger Deep/Mariana Trench

What is the scientific term for the volume of the portion of the skull that includes the brain?

• Cerebral volume
• Cranial index
• Skull capacity
• Cranial capacity

What is the top layer of soil, which contains most of the organic substances and nutrients, called?

• Topsoil
• Subsoil
• Clay
• Bedrock

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

• dependent
• constant
• independent
• controlled

The dangerous currents formed when large amounts of water from waves surge out to sea through a break in a sandbar are called ___________.

• rip currents
• ocean swells
• tide pools
• wave breaks