Arctic: The area within the Arctic Circle, characterized by extreme cold temperatures and snow cover for most of the year. The Arctic Highlands make up the northernmost third of this region, where the sun is visible on the northern winter solstice and the midnight sun is visible on the northern summer solstice.
Crystal: Refers to a solid with a symmetrical, regular three-dimensional arrangement of atoms or molecules. Most minerals have a crystalline structure, with examples like hexahedral crystals of apatite. The crystalline components of rocks are usually too small to be seen without magnification.
Earthquake: Sudden and sometimes violent ground shaking caused by movements within the earth’s crust or volcanic activity, leading to potential destruction of buildings and infrastructure.
Frost: Formed when liquid water freezes upon contact with a sub-zero surface, creating ice crystals and frosty conditions.
Glacier: A slowly flowing river of ice, hundreds to thousands of meters deep, found in mountain valleys or as part of ice sheets. Glaciers are formed from compacted snow over time.
Liquid: A substance that flows freely and maintains a constant volume, such as water or oil. Liquids take the shape of their containers and do not have a fixed shape.
Molecule: An electrically neutral group of atoms, representing the smallest unit of a compound. Molecules can be composed of one type of atom or different types, like oxygen (O2) and water (H2O) molecules.
Pressure: The force applied uniformly over a surface, measured as force per unit area. Pressure is an important concept in physics and engineering, influencing various natural phenomena.
Solid: Characterized by a stable and rigid shape, neither a liquid nor a gas. Solids have a definite shape and volume, maintaining their structure under external forces.
Sponge: An object that absorbs liquids or other substances, retaining them until squeezed out or removed. Sponges are often used for cleaning, absorbing liquids efficiently.
Source: www.snexplores.org
