Grow a Valentine’s Day crystal heart

¬†¬†Instead of growing the expected winter snowflake crystal (although those are fun too), why not grow crystal hearts with your kids this weekend? What you’ll need:-string-pipe cleaners-borax,which you can buy in the laundry section of most grocery stores-boiling water-a heat-safe tin or tub-something long enough to balance across the top (pencil, paint brush handle, ruler) […]