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Combined Sets
7.9ABC, 7.11AB Water & Humans/Solar System
| Term | Definition |
|---|---|
| Watershed | area of land that supplies water to a common river system |
| impermeable | does not allow water to pass through easily |
| water table | upper level of the saturated zone of underground water |
| aquifer | any layer of rock or sediment that can hold water, below the saturated zone |
| well | a hole sunk into the ground to reach a supply of water |
| desalination | process to remove salt from ocean water to make fresh water |
| groundwater | in a watershed, water that seeps through the ground and is stored below the Earth's surface |
| hydrosphere | system that contains all the liquid and frozen water on Earth's surface, as well as the groundwater below the surface and water vapor in the atmosphere |
| surface water | natural water that is at or near the surface in a watershed.; drainage water |
| runoff | water that flows over the ground when it rains or when snow melts; does not soak into the soil but instead moves across the surface; can carry dirt, chemicals, and trash |
| artificial reef | man-made structure placed in the ocean or other bodies of water to help create a habitat for marine life |
| fertilizer | chemical or natural substance added to soil or land to increase its fertility; can be a source of water pollution |
| ocean system | all the parts of the ocean that work together to support life and the environment; includes the water, currents, marine life, and the ocean floor |
| percolate/leach | to slowly move or filter through a substance; when rainwater soaks into the ground, it percolates or leaches through the soil and eventually reaches underground water sources |
| pollution | when harmful substances, like chemicals, trash, or smoke, are added to the air, water, or land |
| coral bleaching | happens when coral reefs lose their color and turn white; happens when the water gets too warm or when there’s too much pollution |
| subsidence | sunken land surface due to underlying compression of earth material as a result of excessive removal of groundwater |
| permeable | penetrable; porous; allowing liquids or gas to pass through |
| recreation | something done for fun, a hobby or game |
| Marine Protected Areas (MPAs) | areas designated and effectively managed to protect marine ecosystems, processes, habitats, and species; can contribute to the restoration and replenishment of resources for social, economic, and cultural enrichment |
| Planet | An object that orbits the Sun, has become rounded by its own gravity, and has cleared the area of its orbit |
| Asteroid | A small, mostly rocky or metallic body that orbits the Sun in the inner solar system |
| Meteor | A meteoroid that enters Earth's atmosphere in a streak of light |
| Kuiper belt | A region beyond Neptune's orbit extending 30 to 50 AU from the Sun |
| Comet | A loose ball of ice and rock that usually has a long, narrow orbit around the Sun |
| Oort Cloud | The most distant part of our solar system |
| Solar System | The Sun, the planets, and a variety of other objects |
| Sun | an average-sized star, composed of helium and hydrogen, at the center of the solar system |
| Orbit | to travel in a curved path around something |
| Astronomical Unit | A unit of distance equal to the mean distance from the Sun to the Earth, or about 150,000,000 km |
| Moon | A natural object, or satellite, that orbits a planet |
| Dwarf Planet | an object that orbits the Sun and has enough gravity to be round but has not cleared the area of its orbit |
| Composition | What makes up an object or a material |
| Inertia | The tendency of an object in motion to resist a change in motion unless acted upon by a force |
| Habitable Zone | an area around a star where it is neither too hot nor too cold for liquid water to exist on the surface of the planets within the area |
| Gravity | the force that pulls things toward each other. |
| Habitability | How livable a place, such as a planet, is |
| Sustainability | Using resources in a way that humans do not run out of them, so they can continue to be used in the future |
| Atmosphere | The layer of gasses that surrounds a planet. |
Created by:
trauberk
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