The+Earth's+Systems

Standard 10
__System__- a group of parts that are independent, but work together. __Hydrosphere__ - "hydro" means water. Therefore, anything that scientists describe, when it comes to water, is a part of the HYDROsphere. __Atmosphere__- The atmosphere is just a thin layer of gases that surrounds the Earth. __Geosphere__ - GEO: Earth. Rocks. Land
 * When water evaporates it moves from the hydrosphere to the atmosphere
 * That water may be at the bottom of the ocean or in the top layers of the atmosphere; it is all a part of the hydrosphere.
 * Contains ALL of Earth’s water
 * This sphere can be affected by earthquakes, volcanoes, and tornadoes.
 * It is a part of the water cycle.
 * You need it to survive
 * Just as there are layers inside the Earth, there are also layers in the atmosphere.
 * The layers interact, heat up, and interact with the top layer of the Earth's crust. Sometimes you feel the atmosphere as a cool breeze. Sometimes it's a really hot and humid day that seems to push on you from all sides.
 * Weather occurs within this sphere
 * It is part of the water cycle.
 * Tornados can affect this sphere
 * The satellites that orbit the earth are within this sphere
 * It is a part of the water cycle.
 * This sphere can be affected by earthquakes, volcanoes, and tornadoes.
 * This is where caves exist.

__Sonar__- uses sound waves under water to communicate, navigate, or detect

__Radar__ - uses electromagnetic waves to identify the range, altitude, direction, or speed *weather - meteorologist *speeding cars - Police

__Seismograph__ - detects seismic waves caused by an earthquake

__Weather Balloon__ - carries an instrument up to send information about the atmosphere *2 times each day from 900 places

[|Study Jams]

[|The Four Spheres]