4.A
What are the two main types of igneous rocks based on how they form?
Intrusive Igneous Rocks
Extrusive Igneous Rocks
What are the two main types of weathering?
chemical and physical
What are the three main types of rocks?
Igneous, Sedimentary, and Metamorphic
What is the name of the continuous movement of water on, above, and below the Earth's surface?
Hydrologic cycle
Name three mineral resources that are found in Alabama
Limestone, Chalk and Gold
What is the name of the molten rock that originates deep within the Earth?
Magma
What is the difference between mechanical and chemical weathering?
Mechanical weathering is the breakup of rock without changing its chemical composition.
How are igneous rocks formed?
when hot, molten rock crystallizes and solidifies
What are the three main states of water?
solid, liquid, gas
When were the Appalachian Mountains formed?
1.1 billion years ago
Explain the key differences between the formation of plutonic and volcanic igneous rocks.
Plutonic rocks form from magma cooling slowly deep underground, creating large crystals, while volcanic rock form from lava cooling quickly on the surface, creating small crystals.
Explain how plant root growth can contribute to mechanical weathering.
Plant root growing is an example of mechanical weathering
Explain the difference between the cooling rate of magma and the resulting crystal size in igneous rocks.
If the magma cools quickly, the crystals do not have much time to form, so they are very small. If the magma cools slowly, then the crystals have enough time to grow and become large.
Explain the role of water in the weathering and erosion of rocks and minerals
weathering uses water to break down rocks while erosion uses the movement of water to transport those broken pieces.
Explain how the mineral resources in Alabama have been historically important.
The Appalachian mountains and valleys have been home to a variety of human cultures, dating back approximately 12,000 years
How does the composition and viscosity of magma affect the resulting texture of the igneous rock?
Composition determines mineral types, while viscosity controls flow and gas escape, together shaping the rock's texture
Describe the process of hydrolysis and how it leads to chemical weathering.
materials in water (oxygen and hydrogen) or acids in the water bond with minerals to create new substances
Describe how sediments are transported and deposited to form sedimentary rocks.
If the sediment is buried deeply, it becomes compacted and cemented
Describe how groundwater movement can influence chemical weathering.
groundwater movement influences chemical weathering through several key processes
How did the geological history of Alabama, including sedimentary processes and volcanic activity, shape the landscape we see today?
Repeated episodes of mountain building, sea level changes, and the erosion and deposition of sediment shaped the Northeast as we know it today
Predict how the rate of cooling would affect the mineral crystal size in an igneous rock.
slow cooling-Larger crystals
Fast cooling- Shorter crystals
Explain how the presence of acid rain would affect the chemical weathering of rock monuments over time.
increased rain intensity decreases contact time
How does understanding the rock cycle help geologists infer the past environmental conditions of a region?
Different rock types indicate the conditions that existed when they came to be. For sedimentary rocks, these are the environments that existed on the surface of the Earth in the past. Within these rocks, fossils are the remains of ancient living things that existed when those rocks were being produced
Analyze how changes in the hydrologic cycle (e.g. due to climate change) could impact surface and subsurface processes.
Changes in thee hydrologic cycle impact the environment through, Erosion and Runoff, Hydrology Changes, Evaporation, Recharge rates, water table shifts, chemical movement, exc.
What are some potential geological hazards that communities in Alabama may need to prepare for, and how could understanding the state's geology help mitigate those risks?
Some of the threats that sea turtles face includes coastal development, pollution, bycatch (unintentional catch), and human-wildlife conflict.