The color and motion of water
Oceans and Water
These pages stay close to water as a system: what it absorbs, what it reflects, how it moves, and what that changes for the rest of the planet.
Explainers
Pages in Oceans and Water
Ocean color, salinity, tides, and buoyancy explaining why water behaves so differently from the air above it.
A live ocean lab that shows how depth, plankton, sediment, and surface glare shift water from cobalt blue to turquoise, green, or brown.
Oceans and Water What causes tides?A tide lab that lets you combine lunar pull, solar alignment, and coastline shape to see why some places have tiny tides and others have huge ones.
Oceans and Water Why is the ocean salty?A salinity lab that lets you mix river minerals, evaporation, fresh water, and seafloor chemistry to see how salt levels change.
Oceans and Water Why does ice float?An ice-buoyancy lab that lets you vary temperature, salinity, pressure, and lattice openness to compare lake ice, sea ice, slush, and dense high-pressure ice.
Further Reading
Trusted places to keep exploring
These are good next stops if you want to move from a quick explainer into broader source material.