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6Grade Science Vocab

TermDefinition
Solid A state of matter that has a definite shape and a definite volume.
Gas A state of matter with no definite shape or volume
Liquid A state of matter that has no definite shape but has a definite volume.
Surface Tension Is an inward force, or pull, among that molecules in a liquid that make the top almost skin-like
Viscosity A liquid’s resistance to flowing.
Vibrate Move back and forth slightly
Thermal Energy the energy contained within a system that is responsible for its temperature.
Melting point The temperature at which a substance changes from a solid to a liquid
Freezing Point The temperature at which a liquid changes to a solid.
Evaporation The process by which molecules at the surface of a liquid absorb enough energy to change to a gas.
Condensation The change of state from a gas to a liquid.
Sublimation The change in state from a solid directly to a gas without passing through the liquid state.
Boiling Point The temperature at which a liquid boils.
Pressure The force pushing on a surface
Proportional Consistent with , if one value increases the other does as well
Charles's law A principle that describes the relationship between the temperature and volume of a gas at constant pressure
Boyle's Law A principle that describes the relationship between the pressure and volume of a gas at a constant temperature
Convection Current The movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another.
The law of conservation of energy The rule that energy cannot be created or destroyed it can only be transformed.
Wave The transfer of energy from one location to another
Mechanical Wave a wave that has to move through some type of matter
Medium The matter that a wave moves through
Electromagnetic Waves Wave that does not need matter to travel (can travel through space)
Transverse Waves waves that move up and down
Longitudinal wave waves that move back and forth slightly (vibrate)
Amplitude Height of the wave
Wavelength The distance between peaks of waves
Frequency The number of waves that pass a point after a certain time
Organism A living thing
Cell The basic unit of life
Unicellular made of one cell
Multicellular consisting of many cells
Mitochondria The powerhouse of the cell
Nucleus The brain of the cell, it controls everything
chloroplast makes food in the animals cell only
cell membrane protective layer that controls what comes in and leaves the cell
ER/Ribosomes makes proteins in the cell
Vacuole It stores things like water and food in the cell
Conduction the transfer of heat through touch
Radiation The transfer of heat through waves
Convection The transfer of heat through currents in air or water
Homeostasis The condition in which an organism’s internal environment is kept stable in spite of changes in the external environment.
Stimulus A change in an environment that causes a reaction.
Fault a break in part of the earth's crust that is like a crack in the surface of the earth.
Relative Age: is its age compared to the ages of other rock
Fossils The preserved remains or traces of living things
Intrusion when magma cools and solidifies before it reaches the surface of the Earth
Absolute Age The age of a rock given as the number of years since the rock formed
Superposition in horizontal layers of sedimentary rock, each layer is older than the layer above it and younger than the layer below it.
Geology The study of rocks and fossils or remains of living things
Radioactive Dating Determining the age of an object using the half-life of one or more radioactive elements
Convergent Plate boundary where two plates are moving towards each other
Divergent Plate Boundary When two plates are moving away from each other
Transform Boundary When two plate slide past one another
Transpiration The evaporation of water from plants
Precipitation any form of water that falls from clouds
runoff water that flows over the ground surface rather than soaking into the ground
Infiltration Water that soaks into the ground
Created by: user-1774311
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