I love this fun color experiment for kids. Mixing colors is always a hit and is a great kindergarten or preschool provocation to teach primary and secondary colors. Teach science through a fun and engaging learning activity.
STEM Challenges: Straws are such a great material to use for your STEM projects. They are easy to use, come in many colors and sizes, and they are inexpensive! Here's a flying project that used different sizes of straws for the flyer!