Calming bottles - these sensory bottles are great for little ones to explore and for preschoolers to use during a cooling off period. Water bottles with small amount of water poured out. Glitter glue, loose glitter, jewels and superglue to seal cap.
pine needle discovery bottles - Make with the kids at preschool. Add water, pine needles, and glitter to a water bottle and hot glue cap on top. Use different evergreen, so the kids can see the difference. Kind of a 'I Spy' theme
Scooping items floating in water: this activity can be done with any item that floats, and can be changed around themes, holidays, or to increase difficulty. Children work on motor skills, but can also start incorporating color matching or sorting as time