A solid material found on Earth's crust that has a definite chemical makeup.These materials make up rocks.
What is a mineral?
100
The dropping of sediment moved by rock, wind, or ice.
What is deposition?
100
The innermost layer of the Earth. It is solid and composed mostly of nickel and iron.
What is the inner core?
100
Molten rock that reaches the Earth's surface, such as when a volcano erupts.
What is lava?
100
These are preserved remains of organisms from the past.
What are fossils?
200
The type of rock formed when melted rock from inside the Earth cools and hardens.
What is igneous?
200
The slow wearing away of rock into smaller pieces.
What is weathering?
200
The outer layer of the Earth that is continually changing.
What is the crust?
200
A sudden movement in part of the Earth's crust due to plate tectonics.
What is an earthquake?
200
Two types of hard body parts that can be fossilized.
What are teeth and bones?
300
A type of rock created when sediment becomes pressed together and hardens.
What is sedimentary?
300
The movement of sediment from one location to another.
What is erosion?
300
A thick layer of rock below the Earth's crust.
What is the mantle?
300
A crack that is created in the Earth's crust from rapid surface changes.
What is a fault?
300
An imprint made by an animal that is preserved over time.
What is a footprint?
400
A type of rock formed by heat and pressure.
What is metamorphic?
400
Sand, particles of rock, bits of soil, and the remains of once-living things.
What is sediment?
400
A liquid layer of Earth beneath the mantle. It is made up of super-heated liquid molten lava that is believed to be mostly iron and nickel.
What is outer core?
400
Molten rock beneath the Earth's surface.
What is magma?
400
A scientist that examines fossils and organisms from long ago.
What is a paleontologist?
500
The Earth's process of changing one kind of rock into another kind of rock.
What is the rock cycle?
500
As the Earth's surface changes, these formations occur. Some examples include valleys, mountains, plains, hills, and canyons.
What are landforms?
500
Pieces of the Earth's surface that are constantly moving. Over time, they create changes in the Earth's surface (example: earthquakes, volcanoes, faults, etc.)
What are plate tectonics?
500
When dirt, pebbles, rocks, and boulders slide down a slope together. Sometimes they can be small, but other times they can impact entire mountain sides.