Students make different shapes on the end of their pipecleaner (heart, square...) to try and make different shaped bubbles.
Science content (2016 curriculum):
Chemistry: States of Matter, Properties of Materials (K-7)
Science topic (2005 curriculum connection):
Physical Science: Properties of Objects and Materials (grade K)
Physical Science: Properties of Matter (grade 2)
Physical Science: Materials and Structures (grade 3)
Physical Science: Chemistry (grade 7)