Here’s some stuff to do this weekend for kids and adults alike. For more upcoming local events, visit our Happenings page.

• Saturday, July 21, 11:30-3 p.m., White Rock Baptist Church (5240 Chestnut St.) – Community Science Carnival

The First Annual Community Science Carnival is organized by the Science Education Academy, a community partnership between the White Rock Baptist Church and the Ernest E Just Biomedical Society at the University of Pennsylvania. Children from grades K-6 are invited to be Curious Scientific Investigators and assist Penn graduate students and Post-doctoral fellows with scientific experiments. Children will learn about microbes, how to make batteries with potatoes, how planes fly and how to solve mysteries using chemistry! Parents are welcome too – there will be a workshop on how to help your children with science fair projects. See the flyer for details. This is a free event and open to the public. RSVP is not required but appreciated – email sea.philly2008@gmail.com or call 215-882-9797.

• Saturday, noon-6 p.m., Saunders Park (39th & Powelton Ave.) – Lancaster Avenue Jazz and Community Arts Festival

Also this Saturday, don’t miss the Lancaster Avenue Jazz and Community Arts Festival taking place at Saunders Park in the Powelton Village section of West Philadelphia. Doc Gibbs & Friends, Glenn Bryan & Reference Point and Planet Jazz will perform. Also there will be free family activities, a moon bounce, crafts, a vendor market and more. We also hear that  a shredder truck will make a stop at the park from 11 a.m. to 3 p.m., so bring all that used paper cluttering your house and then enjoy some great music. For more information, visit the event’s Facebook page.

• Sunday, July 22, 11 a.m.-12:30 p.m., The Rotunda (4014 Walnut Street) – Kripalu Yoga Preview Class

Kripalu Yoga classes begin at The Rotunda in August and a free preview class is being held this Sunday, from 11 a.m. to 12:30 p.m. Kripalu Yoga is a form of Hatha Yoga using standard yoga poses, inner focus, breathwork, meditation and relaxation. For more information, contact Katie Bonier at kripaluyogaphilly@gmail.com or visit www.therotunda.org.