Apologia: Chemistry and Physics

 Today, L. assembled the Periodic Table cookies, p.61.  She tinted the icing, arranged 24 cookies into groups or families, and enlisted the Physical Science students to help frost and label the cookies, which became snack.  L. also led the 'Try This' on p.33, at the bottom of the page.  L. demonstrated the lab with an explanation of how water molecules are 'sticky', meaning the individual water molecules are attracted to each other.  The Physical Science class dropped water on pennies to see who could drop the most.  This activity is a terrific way to see how water molecules form this water bubble owing to the attractions of the individual water molecules.  Next week, L. will make and lead a lesson with Oobleck, a nonnewtonian fluid and grow crystals.  The experiment on p. 81 calls for alum.  L. is going to prepare alum, borax, salt, Epsom salt, and sugar crystals in baby food jars to compare the crystal formations.