In a line graph, data points are connected with a line, which easily demonstrates changes and patterns in data. Line graphs are particularly useful in showing changes over time.
Large, flat areas of the ocean floor where life is sparse are called abyssal plains.
The arctic ocean is located near the north pole.
The region where the edge of a continent meets the ocean floor is called the continental margin.
Some continental shelves, like this one along the Atlantic coast of North America, extend hundreds of kilometers into the ocean.
At the edge of the continental shelf is a steep incline that drops to the ocean floor, referred to as the continental slope.
In the ocean, cold, dense water from the poles sinks downward to the deep ocean and continues to flow slowly toward the equator.
The Indian Ocean is one of the smaller oceans.
Some volcanic mountains that rise sharply from the ocean floor, called sea mounts, rise above the ocean surface and become islands.
Ocean trenches form along the edges of the ocean floor and are the deepest areas of the ocean.
The Pacific ocean is the largest and deepest ocean on Earth.
A sea is a smaller body of saltwater that is nearly enclosed by land.
In some areas, deep submarine canyons cut into the continental shelf and continental slope.
Most surface currents move water in the upper few hundred meters of the ocean.
A current is a river of moving water within the ocean. Surface currents move water horizontally, parallel to Earth's surface. As wind blows, friction is created along the surface, forcing the water to flow.
A thermocline is the zone that separates warmer water from colder water and separates water of different densities. Warmer, less dense water rides above colder, denser water.
A high concentration of asteroids, referred to as the asteroid belt, is found between the orbits of Mars and Jupiter.
Jupiter is thought to have a small, solid core, with the remaining mass being gas.
Neptune is over 4.4 billion kilometers from Earth.
The moon revolves around Earth, which together revolve around the sun. It takes Earth 365 days to make one revolution.