Atoms and molecules are everywhere around us! Atoms are too small to see with our eyes, even with a magnifying glass. Sometimes, when a group of atoms form together, they create a molecule. Both atoms molecules always move around us.
How are atoms and molecules different?
Atoms are one single particle. An atom is made of nucleus and several electrons. The number of nucleus and protons are equal in an atom. Though, a molecule is two or more atoms bonded together.
How are atoms and molecules a part of heat transfer?
Sometimes we find ourselves asking ourselves--What is heat? To put it simply, heat is the motion of molecules and atoms. Heat is the kinetic energy of each atom in a sample. Everything has atoms and molecules inside it and the more molecules, the more heat energy. In heat transfer, the molecules are moving very fast, and as you already know, motion means heat. The heat does not stay there for long though, heat transfers from warm to cold, so eventually the heat transfers into the cool air.
Atoms and Molecules in Different Forms
Liquid Form: The molecules move around alot. The reason liquid can't hold the shape is because they bounce off each other and move relativley to each other. Liquids take the shape of the container.
Gas Form: The molecules in the gas state spread out as much as they can. The molecules don't move as quickly as the liquid ones.
Solid Form: In the solid form, they molecules don't bungle around much. The solids don't have a particular pattern for the molecules, though they do keep there shape.
Plasma Form: Plasma molecules do not have a shape, though it still moves around.
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