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6Grade Science Vocab
| Term | Definition |
|---|---|
| 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 |
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