Dan Meyers's blog

Real World Application: Drain Cleaners - Should I use them?

Common drain cleaners consist of water, sodium hypochlorite (bleach) and sodium hydroxide (base) and/or potassium hydroxide (base). Bases are caustic (caustic loosely means to gnaw or eat away at) and can cause corrosion in metal pipes. Wouldn’t you know, our house has PVC piping through the fixtures that dump into a 45 year old cast iron pipe. The cast iron pipe is old and currently shows signs of surface rust and corrosion to the point where the pipe appears to be leaking then sealing itself in several spots. Not to mention the interior of the cast iron pipe may not be completely open, thus, not permitting a fast flow in drainage. Good news: a home warranty is being taken advantage of to hopefully replace the cast iron pipe with a PVC pipe.


Chemistry Summer Camp - An Overview

Oh summertime! My non-teacher friends and neighbors like to point out that it must be great having summers off from work. I try to explain that I’m still working although it’s really nice having a break from the students. And I know that a lot of colleagues in my PLN on Twitter are enjoying their break from students too while still spending some time working on upcoming challenges and curriculum designs.

Periodic Table Board Game

periodic table game

This week I am on spring break. Before spring break, my honors and regular Chemistry 1 classes made it through our third unit called “Periodic Table and Periodicity.” During this unit, we take about 3 days to learn the content and another 3-4 days to practice the content (more for Chemistry 1, less for Honors). One way that I have my students review the content is by playing a board game that I recreated from an NSTA conference a few years ago. In this board game students are instructed to place words on their proper line/location (including names of families/groups and regions of the periodic table) and arrows on yellow dots pointing in the direction that that periodic trend increases (trends include: Electronegativity, Ionization Energy, and Atomic Size/Radius). Feel free to create additional periodic trend arrows depending on what you’ve covered in class.