Strike
The amount of surface exposed is called surface area. It is the measurement of the total area that the surface of an object occupies.
Hot liquid rock exposed at the Earth's surface is called lava. It forms when magma erupts from a volcano and solidifies after cooling down, creating different types of volcanic rocks. Lava flows can vary in viscosity, temperature, and composition, leading to different types of eruptions and volcanic landforms.
If the magma has hardened before being exposed at the surface it would be considered an intrusive igneous rock. It is hardens at or near the surface, it would be called extrusive igneous rock.
Regions of the Earth's surface with abundant limestone exposed are typically known as limestone terrains or limestone landscapes. These regions often feature distinctive topography due to the erosion of the soluble limestone rock by water, forming features such as caves, sinkholes, and limestone pavements.
The color green that aged copper turns into is called patina. It is a natural blue-green tarnish that forms on the surface of copper when exposed to air and moisture over time.
The Strike
strike
compass
compass
The movable bar in a compass is called the compass needle. It is typically a thin magnetized bar that aligns with the Earth's magnetic field to indicate direction.
The direction marker on a map called a compass rose. It was so named because the directional lines drawn from the marker were said to resemble a rose.
The force that changes the direction of a compass needle is called the magnetic force, which is generated by the Earth's magnetic field.
The arrows on a compass are called "compass needles." They indicate the direction of magnetic north, allowing users to orient themselves. The needle typically has one end marked, often colored red, to signify the north direction. This helps in navigation and determining bearings.
Surface Area
Surface Area
The amount of surface exposed is called surface area. It is the measurement of the total area that the surface of an object occupies.
It is called lava.