1 ÄeskÃ½ Pivni PivnÃ­ (Festival Czech Beer) festival is the Biggest czech beer, festival is 17 days long and held every year In may In. 2  Prague Pilsner fest is the big festival held every year In august In.  plzeÅ ÄeskÃ½ Pivni PivnÃ­ (Festival Czech Beer) festival is the Biggest czech beer, festival is 17 days long and held every year In may In. 2  Prague Pilsner fest is the big festival held every year In august In.  plzeÅ
Quick Answer. Hydrogen bonds hold together the atoms in a water molecule. A single water molecule is made up of two hydrogen atoms and one oxygen atom.
Molecules. A molecule is two or more atoms bonded together chemically. An atom is the most basic unit of matter. When atoms are chemically bonded together with covalent bonds, molecules are formed. Molecules can be very small like water molecules or extremely large like proteins such as hemoglobin.