i) Solid
ii) Liquid
iii) Gas
Energy (usually in the form of heat)
The molecules slow down and move closer together, forming a more ordered structure.
It uses a refrigerant that absorbs heat from inside the refrigerator as it evaporates (changes from liquid to gas), then releases that heat outside as it condenses back into a liquid.
Steam is visible water vapor that has condensed into tiny droplets; water vapor is the invisible gaseous state of water.
The lowest possible temperature, where the enthalpy and entropy of a cooled ideal gas reach their minimum values, theoretically at 0 Kelvin or -273.15°C.
No, scientists cannot cool matter to absolute zero because it would require removing all thermal energy, which is impossible according to the Third Law of Thermodynamics.
a) Gases have no fixed shape or volume; they expand to fill the entire container they are in.
b) Liquids have a fixed volume but no fixed shape; they take the shape of the bottom of their container.
c) Solids have a fixed shape and volume; their particles are tightly packed and vibrate in place.
Parent Tip: Review the logic above to help your child master the concept of bill nye matter worksheet.
