https://padlet.com/3049101/ieykjjyp5v6h Session for prospective students and parents led by Dr. Ashley Juarez, University of Northern California. Post your questions here! en-us 2017-12-06 16:37:03 UTC 2025-11-20 17:34:08 UTC hello@padlet.com https://padletuploads.blob.core.windows.net/prod/80264060/cdf38ae2d21ee13c036196e76c1eb262/Backback.png 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213788322 physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, especially as distinct from energy.]]> 2017-12-06 16:39:08 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213788322 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213790492 An atom is the smallest constituent unit of ordinary matter that has the properties of a chemical element. Every solid, liquid, gas, and plasma is composed of neutral or ionized atoms. Atoms are very small; typical sizes are around 100 picometer]]> 2017-12-06 16:41:43 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213790492 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213791483 gas is a sample of matter that conforms to the shape of a container in which it is held and acquires a uniform density inside the container, even in the presence of gravity and regardless of the amount of substance in the container.]]> 2017-12-06 16:43:05 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213791483 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213792214 Liquids take on the shape of their container. The liquid state of matter is an intermediate phase between solid and gas. Like the particles of a solid, particles in a liquid are subject to intermolecular attraction; however, liquid particles have more space between them, so they are not fixed in position.]]> 2017-12-06 16:44:15 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213792214 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213793656 Physics One of four main states of matter, in which the molecules vibrate about fixed positions and cannot migrate to other positions in the substance. Unlike a gas or liquid, a solid has a fixed shape, and unlike a gas, a solid has a fixed volume]]> 2017-12-06 16:46:40 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213793656 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213795540 Evaporation is a type of vaporization of a liquid that occurs from the surface of a liquid into a gaseous phase that is not saturated with the evaporating substance. ]]> 2017-12-06 16:49:51 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213795540 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213796364 Condensation is the change of the physical state of matter from gas phase into liquid phase, and is the reverse of evaporation. The word most often refers to the water cycle.]]> 2017-12-06 16:51:15 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213796364 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213797620 Sublimation is the phase transition of a substance directly from the solid to the gas phase without passing through the intermediate liquid phase.]]> 2017-12-06 16:53:18 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213797620 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213798193 Freezing, or solidification, is a phase transition in which a liquid turns into a solid when its temperature is lowered below its freezing point.]]> 2017-12-06 16:54:15 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213798193 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213799106 make or become liquefied by heat.]]> 2017-12-06 16:55:58 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213799106 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213800248 The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume. The symbol most often used for density is ρ, although the Latin letter D can also be used.]]> 2017-12-06 16:57:52 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213800248 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213800873 a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition]]> 2017-12-06 16:58:57 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213800873 3049101 https://padlet.com/3049101/ieykjjyp5v6h/wish/213801502 a usually irreversible chemical reaction involving the rearrangement of the atoms of one or more substances and a change in their chemical properties or composition,]]> 2017-12-06 17:00:12 UTC https://padlet.com/3049101/ieykjjyp5v6h/wish/213801502