Vobcab 4 Flashcards
(15 cards)
Rock
Rock is a natural solid made of minerals,
Rock Cycle
The rock cycle turns rocks into different types.
Sedimentary rock
Sedimentary rocks form from bits of rock or material
Metamorphic rock
Metamorphic rocks form from heat and pressure.
Igneous rock
Igneous rocks form when magma or lava cools.
Mineral
solid, natural building blocks of Earth’s crust.
Crystal
solid with a repeating atomic pattern.
Felsic
Felsic rocks have silica; mafic rocks have iron.
Mafic
Felsic rocks are light; mafic rocks are dark.
Weathering
rock breakdown by wind, rain, and more.
Erosion
movement of materials by wind, water, or other forces.
Mechanical Weathering
Physical weathering breaks rocks without changing them.
Chemical Weathering
Chemical weathering changes a rock’s composition.
Luster
Luster is how a mineral’s surface reflects light.
Streak
Streak is a mineral’s powder color.