🌊 Oceans & Water Cycle
Real answers about Earth's water: how oceans work, why they're salty and blue, the water cycle and evaporation, glaciers and how they form, tides and the moon, rogue waves, aquifers, the Mariana Trench depths, and how much of Earth is water.
33 topics 2–4 min avg read
🔬 Explore More Science Topics
Forces, Motion & Energy
The physics of motion, momentum, and the fundamental forces. Tides are pure gravitational physics; waves and currents move enormous energy.
Chemistry Elements
The building blocks of all matter from hydrogen to uranium. Seawater is a complex solution of nearly every element on the periodic table.
Chemistry Reactions
Acids, bases, oxidation, and what's happening when stuff changes. Ocean acidification is one reaction transforming entire marine ecosystems.
Electricity, Magnetism & Waves
Currents, circuits, magnets, and how electricity flows. Sound waves travel four times faster underwater than in air.
Volcanoes & Earthquakes
Eruptions, lava, plate tectonics, and Earth's violent geology. Most volcanoes on Earth are actually underwater along the ocean ridges.
Weather & Atmosphere
Clouds, wind, fronts, and what makes the sky do what it does. The ocean is where most atmospheric water vapor comes from.
Severe Weather & Storms
Tornadoes, hurricanes, lightning, and extreme weather. Hurricanes form over warm ocean water and die when they hit land.
Rocks, Minerals & Earth Structure
The three rock types, fossils, tectonics, and Earth's layers. The ocean floor is built of basalt; coral reefs become limestone.
How Things Work & Discoveries
Inventors, inventions, and how everyday devices function. Ships, hydroelectric dams, and ocean thermal energy all harness water.
🛠️ Free Tools & Calculators
Black Hole Weight Calculator
See what gravity does to your weight near a black hole, including the tidal forces that would stretch you into spaghetti.
Weight on Other Planets Calculator
See how much you'd weigh on every planet, the Moon, Pluto, and the Sun's crushing gravity. No signup, just answers.
Your Age on Other Planets Calculator
How old you'd be on Mercury, Mars, Jupiter, and beyond. Some surprising results waiting on Neptune.