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Minter Earth's Water
| Question | Answer |
|---|---|
| __________is essential for all living things to grow, reproduce, and carry out other important processes. | Water |
| Plants use water, plus carbon dioxide and energy from the sun, to make food in a process called | photosynthesis. |
| More than 97% of Earth's water is saltwater that is found in oceans and 3% is | freashwater. |
| _____________cover nearly 71% of the Earth's surface. | Oceans |
| _________________the gaseous form of water. | Water vapors |
| Water that fills the spaces in underground soil and rock layers is called | groundwater. |
| ___________________is a measurement of the substances in water besides water molecules. | Water quality |
| The ______________ of water is a measurement of how acidic or basic it is, on a scale of 1 to 14. | pH |
| A _______________________ is the amount of one substance on a certain volume of another substance. | concentration |
| _________________ is the process of passing water through a series of screens that allows the water through, but not larger solid particles. | filtration |
| Sticky globs created by adding a chemical such as alum during water treatment are called | flocs |
| ___________________is the process by which particles in a liquid clump together; a step in the water treatment process. | coagulation |
| ___________________ is water containing human wastes. | sewage |
| An underground tank containing bacteria that treats wastewater as it passes through is a | septic tank |
| The area around the septic tank that the water filters through is called a | leach field |
| The addition of any substance that has a negative effect on water or the living things that depend on the water is called | water pollution |
| A _______________ is a specific source of pollution that can be identified, such as a pipe. | point source |
| A widely spread source of polution that can't be tied to a specific point of origin is called | nonpoint source |
| ________________is added to drinking water to kill disease-causing microorganisms. | chlorine |
| __________________ can be treated to make it safe to return to the environment. | wastewater |
| ____________________ are chemicals intended to kill insects and other organisms that damage crops. | pesticides |
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mominter
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