STEM / STEAM Science for Kids: Exploring Rainbow Reflections with a CD and Paper Snowflakes- fun way to explore light!
Fun with water, great recycled plastic bottle project. This could be pretty if you used wine bottles. It's just a matter of figuring out how to cut a hole in the side.
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