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Nilin - EES 3.1
EES 3.1
| Term | Definition |
|---|---|
| water | a colorless, transparent, odorless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms. |
| capillary action | the spontaneous movement of a liquid through narrow spaces, like pores or tubes, driven by adhesion (attraction to other molecules) and cohesion (attraction to itself) overcoming gravity |
| cohesion | the sticking together of particles of the same substance |
| adhesion | the action or process of adhering to a surface or object |
| polarity | physical (observable without changing identity, like color, density, melting point) and chemical (describing potential to form new substances, like flammability). |
| Transfer | The movement of something (like energy, heat, or matter) from one place or object to another. |
| Energy | The ability to do work or cause change (for example: heat, light, motion). |
| Atmosphere | The layer of gases that surrounds Earth. |
| Hydrosphere | All the water on Earth, including oceans, rivers, lakes, glaciers, groundwater, and water vapor. |
| Climate | The average weather conditions of a place over a long period of time. |
| Convection | The transfer of heat through the movement of fluids (liquids or gases). |
| Freeze | To change from a liquid to a solid due to a decrease in temperature. |
| Dissolve | When a substance mixes evenly into another substance and becomes part of a solution. |
| Specific Heat Capacity | The amount of heat energy needed to raise the temperature of a substance by 1°C. |
| Solid | A state of matter with a fixed shape and volume. |
| Liquid | A state of matter with a fixed volume but no fixed shape. |
| Gas | A state of matter with no fixed shape or volume. |
| Solute | The substance that is dissolved in a solution. |
| Solvent | The substance that does the dissolving in a solution. |
| Solution | A mixture in which a solute is evenly dissolved in a solvent. |
| Surface Tension | The tendency of liquid molecules at the surface to stick together, forming a “skin.” |
| Water Cycle | The continuous movement of water on, above, and below Earth’s surface through evaporation, condensation, precipitation, and collection. |
| Kelvin Scale | A temperature scale that starts at absolute zero; used mainly in science. |
| Absolute Scale | Another name for the Kelvin temperature scale. |
| Universal Solvent | Water, because it can dissolve many different substances. |
| Homogeneous Solution | A mixture that is evenly mixed throughout. |
| Heterogeneous Solution | A mixture that is not evenly mixed and has visible different parts. |
| Examples of Heterogeneous Solutions | Oil and water, sand in water, salad. |
| Examples of Homogeneous Solutions | Salt water, sugar water, air. |
| Example of Cohesion | Water droplets forming beads on a leaf |
| Example of Adhesion | Water sticking to the sides of a glass. |
| Example of Surface Tension | A paper clip floating on water. |
| Example of Capillary Action | Water moving up a plant’s roots or up a paper towel. |