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Science Chapter 1

Science Vocabulary for Chapter 1

QuestionAnswer
Polar Molecule A molecule that has electrically charged areas
Capillary Action The combined force of attraction among water molecules and with the molecules of surrounding materials
Surface Tension The tightness across the surface of water that is caused by the polar molecules pulling on one another
Solution A mixture that forms when one substance dissolves another
Solvent A substance that dissolves another substance
Specific Heat The amount of heat needed to increase the temperature of a certain mass of a substance by 1 degree Celsius
Evaporation The process by which molecules at the surface of a liquid absorb enough energy to change to the gaseous state
Condensation The process by which a gas changes to a liquid
Photosynthesis The process by which plants use water, along with carbon dioxide and energy from the sun, to make their own food
Habitat The place where an organism lives and where it obtains all the things it needs to survive
Groundwater Water that fills the cracks and spaces in underground soil and rock layers
Water Cycle The continuous process by which water moves from Earth's surface to the atmosphere and back
Transpiration The process by which plants give off water vapor through their leaves
Precipitation Water that falls to Earth as rain, snow, hail, or sleet
Impermeable A characteristic of materials, such as clay and granite, through which water does not easily pass
Saturated Zone The area of permeable rock or soil in which the cracks and pores are totally filled with water
Water Table The top of the saturated zone, or depth to the groundwater under Earth's surface
Unsaturated Zone The layer of rocks and soil above the water table in which the pores contain air as well as water
Aquifer An underground layer of rock or sediment that holds water
Artesian Well A well in which water rises because of pressure within the aquifer
Created by: Allison9
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