Welcome, mrshgraham. A noble hobby, helping kids learn more about science. If anything is worth doing, THAT certainly is. My step-daughter is a teacher and has at different times taken 4th or 5th grade classes so I know from her how important it is to have help teaching the little rascals who one day will be designing the next generation of computers.
I'm a certified grandpa (3 times now) and proud of it.
Retired over one year and survived being home all day with the wife. She must really love me.
If I have helped you, please either click the thanks or click the scales.