Question 1 of 10
TEKS 8A-8FEasy
The fan-shaped or triangular deposit of sediment that forms where a river enters a quiet ocean or lake is a:
Aglacier
Bcanyon
Csand dune
Ddelta
Explanation
As a river loses speed entering still water, it drops sediment, building a delta.
Question 2 of 10
TEKS 8A-8FEasy
Increasing the steepness (slope) of the land will generally cause the rate of erosion to:
Adecrease
Bstop completely
Cstay exactly the same
Dincrease
Explanation
Steeper slopes give running water and gravity more energy, increasing erosion.
Question 3 of 10
TEKS 7A-7FEasy
A crack or break in rock along which movement has taken place is called a:
Afault
Bcontour
Cmineral
Ddelta
Explanation
A fault is a fracture in rock along which the two sides have moved relative to each other.
Question 4 of 10
TEKS 7A-7FEasy
A rock that forms from the cooling and solidification of molten magma or lava is classified as:
Ametamorphic
Bigneous
Csedimentary
Da single mineral
Explanation
Igneous rock forms when molten material (magma/lava) cools and solidifies.
Question 5 of 10
TEKS 7A-7FEasy
Earth’s major layers, from the outside inward, are the:
Amantle, crust, and core
Bcrust, mantle, and core
Ccrust, core, and mantle
Dcore, mantle, and crust
Explanation
From surface to center: crust, then mantle, then core.
Question 6 of 10
TEKS 7A-7FEasy
A rock is best defined as:
Aa single pure chemical element
Ba naturally occurring solid made of one or more minerals
Cthe preserved remains of an organism
Da manufactured building material
Explanation
Most rocks are mixtures of one or more minerals.
Question 7 of 10
TEKS 7A-7FEasy
The relative hardness of a mineral is measured using the:
ACelsius scale
BMohs hardness scale
CRichter scale
DpH scale
Explanation
The Mohs scale (1 = talc to 10 = diamond) ranks minerals by scratch resistance.
Question 8 of 10
TEKS 8A-8FMedium
The process by which weathered rock and sediment are picked up and transported by water, wind, or ice is:
Acrystallization
Bweathering
Ccementation
Derosion
Explanation
Erosion is the transport of sediment by an agent such as running water, wind, or glacial ice.
Question 9 of 10
TEKS 8A-8FEasy
The physical or chemical breakdown of rock into smaller pieces at Earth's surface is called:
Acondensation
Bweathering
Csubduction
Ddeposition
Explanation
Weathering breaks rock down in place; it is distinct from erosion (the transport of the pieces).
Question 10 of 10
TEKS 8A-8FEasy
A stream is able to erode and transport the largest, heaviest particles when its velocity is:
Ahigh (fast-moving)
Bzero (standing still)
Cdecreasing to a stop
Dlow (slow-moving)
Explanation
Faster-moving water has more energy, so it can erode and carry larger, heavier sediment.