Other Free Encyclopedias » Science Encyclopedia for Kids » Geology

GLOSSARY

rock rocks sediment soil

constructive forces (con-STRUK-tiv FORSS) — processes by which rock is created, such as crustal deformation, volcanic eruptions, and deposition of sediment

core (KOHR) — the Earth's center, it is made of an inner core and an outer core

crust (KRUHST) — the outer layer of the Earth

crustal deformation (KRUS-tull dee-for-MAY-shun) — when the shape of land (or crust) is changed or deformed

destructive force (dee-STRUK-tiv FORSS) — processes by which rock is broken down, such as erosion and weathering

erosion (e-ROH-shuhn) — the process by which rock particles are moved

eruption (ee-RUHP-shun) — occurs when pressure forces the release of lava from a volcano

fossils (FOSS-uhls) — the remains or impressions left in rocks by plants or animals

horizons (huh-RIYZ-uhns) — layers of soil

igneous rock (IG-nee-us ROK) — rock formed when magma cools

inorganic matter (IN-or-GAHN-ick MAT uhr) — non-living matter, such as sand, silt, and clay

lithification (lith-if-ih-CAY-shun) — the process that causes sediment to turn into rock

lithosphere (LITH-oh-sfeer) — a layer of hardened rock made up of the crust and the upper mantle

mantle (MAN-tl) — the thickest part of the Earth that lies just below the crust

metamorphic rock (meht-ah-MORE-fick ROK) — rock that has changed from one type to another by pressure or heat

mineral (MIHN-er-uhl) — a naturally occurring crystalline substance

organic matter (or-GAHN-ick MAT uhr) — the remains and waste of plants and animals

plate tectonics (PLAYT tek-TAH-nix) — the theory that the lithosphere is made up of moving plates

sediment (SED-uh-ment) — small particles of worn away rocks

sedimentary rock (sed-uh-MENT-tuh-ree ROK) — new rock formed from the sediment of older rocks

soil (SOYL) — the thin layer at the very top of the lithosphere consisting of weathered rock and organic matter

soil erosion (SOYL??e-ROH-shuhn) — when wind, rain, or other events move soil from one place to another

weathering (WETH-uhr-ing) — the breaking down of rocks through exposure to the atmosphere

[back] Websites to Visit/Further Reading - Questions to Consider, Websites to Visit, Further Reading

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or