the forms matter can take, such as solid, liquid, and gas; sometimes called phases of matter

the path through which an electric current cannot flow

the bouncing back of light rays from a surface

the bending of light as it moves through one medium into another

process of binding and hardening of sediments into hard rock

process by which overlying pressure from rocks and soil reduces the size or volume of sediments

process by which weathered and eroded material is deposited by wind, water, and ice

the movement of weathered material by wind, water, or ice (e.g. glaciers)

process by which exposed rock is broken down by rain, frost, wind, or other elements of weather