Wednesday is supposed to be sticky (about 80 degrees we’re told) and thunderstormy. Since the public school kids are home this week for spring break, a cool event might be The Boy Who Cried Bully, a free performance put on by the Walnut Street Theatre’s touring company at the Lucien E. Blackwell West Philadelphia Regional Library (52nd and Sansom).

Here is a description of the play from the Walnut Street Theatre website:

“Meet Nate, a typical third-grader with a love for telling tall tales. Nate’s biggest problem is Sam, a fifth-grade bully who has it in for him and his friends. Thankfully, Bob the Bully-Buster visits to teach Nate’s class what they can do to identify and prevent bullying in school. Based on the classic Aesop’s fable, The Boy Who Cried Wolf, this honest, funny and engaging production looks at stretching truths and accepting differences.”

The performance begins at 4 p.m. on Wednesday and is suitable for kids K through 5th grade. For more info call the library at 215-685-7424.

UPDATE – The march has been moved up an hour so it will now start at 1 p.m. at The Rotunda near 40th and Walnut. The other stops are moved up an hour as well.

Community members and activists are marching from the Schuylkill to the Delaware on Saturday to draw attention to the effects of upstate natural gas extraction on the Delaware River watershed.

The march will begin at noon at The Rotunda near 40th and Walnut and proceed first to Love Park and then to the Penn Treaty Park where the annual Shadfest will be underway.

The groups River to River and Protecting Our Waters are sponsoring the march, which will converge on Love Park at 2 p.m. before heading east and then north on Third Street to Penn Treaty Park and the Shadfest.

The documentary film Gasland details natural gas extraction and the process known as “fracking” that entails forcing toxic chemicals into shale formations to force gas to the surface. Gasland is playing as part of a fundraiser for West Philly’s Mariposa Food Co-op on Wednesday.

The rain date is the next day,  Sunday, April 24.

Community members are invited to discuss crime and neighborhood issue with Lt. Brian McBride from the University City section of the 18th Police District on Thursday.

The meeting will begin at 6 p.m. in the lower level of the Calvary Center at 48th and Baltimore.

The road to Philly Beer Geek 2011 runs through the Dock Street Brewing Co. Wednesday night with a qualifying round beginning at 7 p.m.

The purpose of the Philly Beer Geek competition is “to identify, exalt and honor Philadelphia beer and the people who craft, celebrate and consume it with enthusiasm and pride,” according to the competition website. To get through to the semifinals on May 24 and then the finals during Philly Beer Week on June 9, contestants must first get through a qualifying round like the one Wednesday at Dock Street.

Details about the qualifying rounds are intentionally vague. They could be a beer quizzo, a tasting, classic bar jokes etc. Spectators are welcome and admission is free.

The emcees of Wednesday’s festivities are Carolyn Smagalski, the Beer Fox, and Steve Hawk, the Human Growler, who won the 2010 competition.

What’s that you say? You’re wondering how you can see the Oscar-nominated documentary Gasland, see three great bands AND help your local neighborhood food co-op all in one event? You’re in luck.

Mariposa Food Co-op is hosting a fundraising event Wednesday beginning at 7 p.m. that includes screening of Gasland, and performances by The Curious Shape of Hens, Dream Zoo and Adrienne Anemone. Admission is on a sliding scale from $5-$10. The event will be held at Mariposa’s new digs at 4824 Baltimore. Proceeds will go toward Mariposa’s expansion project.

This Thursday is a good night to get your science on in West Philly. Guion “Guy” Bluford, the first African American in space and a West Philly native, will speak at the University of the Sciences’ McNeil Science and Technology Center (43rd and Woodland) at 7 p.m.as part of the Philadelphia Science Festival.

Bluford participated in four space shuttle missions between 1983 and 1992. He graduated from Overbrook High School and received a B.S. in aerospace engineering from Penn State before completing graduate work at the Air Force Institute of Technology.

After the talk star gazers are welcome to grab a blanket and head out to Clark Park where amateur astronomers, telescopes in tow, will be on hand to help you folks navigate the cosmos.

The observatories at Drexel and Penn will also open their doors for this astronomical extravaganza. Drexel’s Joseph R. Lynch Observatory (3141 Chestnut St.) will open at 8 p.m. and Penn’s David Rittenhouse Laboratories Observatory (209 S. 33rd St.) open at 8:30 p.m.