The Parris Powers Science and Math Expo at Volunteer State Community College is coming up on April 5. It’s a fun day of science learning for kids K-8 and their parents and grandparents. There will be dozens of hands-on demonstrations and activities. Those exhibits are put together by Vol State students, who gain a new perspective on science and math education. Topics will include: water properties (cohesion, adhesion, and surface tension), dry ice demonstrations, and education on biodegradable and recyclable materials.