Always wondered how engineers and architects make skyscrapers? Design your own building or structure using toothpicks and marshmallows. Open to ages 5 and up.

The BristleBot is a simple, tiny robot. The ingredients? One toothbrush, a battery and a pager motor. The result? Serious fun. Open to ages 5 and up.

Work together in small groups to complete four fun building challenges in a Tower Building Competition. Open to ages 5 and up.

Enjoy the newly released Disney film “Moana." Moana, a young teenage girl from Oceania, has a sense for navigation and an adventurous mind. She sets out on a journey in search of a mythical island with the hopes and intent of saving her people. Free popcorn provided while you watch. Open to all ages. Runtime 1hr 53m.

A celebration of Gospel music.

40 Below will be joined by Believe in Syracuse to cleanup the Syracuse Inner Harbor from 9 a.m. to noon Saturday, April 22. All are welcome. Volunteers will help beautify the city in partnership with OCRRA and dozens of other cleanup events happening across Central New York in honor of Earth Day. Volunteers will meet at 352 W. Kirkpatrick St. Email 40BelowFeedback@gmail.com with any questions.

The West Onondaga Street Alliance will host. Participants will be divided into two groups and should meet at Onondaga Commons, 484 W. Onondaga St. One will clean up West Onondaga Street, from the Marriott Syracuse Downtown hotel to the Leavenworth Circle Fountain. The other will distribute free LED lightbulb packs to residents on the West Side. Participants will receive a free event T-shirt (first 100 people) and a homemade lunch.

Help the South Side family resource center spread mulch on raised garden beds for its new Peace Garden in partnership with Syracuse Inner City Rotary Club. The garden will grow vegetables and other plants for the community. Volunteers will also plant flowers around the center. For more information, email Charles Rivers at charles.rivers@peace-caa.org.

Join New Covenant Baptist Church and Tomorrow's Neighborhoods Today Southside group for a community cleanup. Volunteers will meet at the New Covenant Baptist Church, located at 107 E. Beard Ave. starting at 10 a.m.

Join in this community cleanup of the Sankofa District South, along South Salina Street. Volunteers should meet at the Rahma Edible Forest Snack Garden, 3100 S. Salina St.; parking available on side streets or in the clinic parking lot. Volunteers will help to clean the garden space and will work along South Salina Street, West Newell Street and West Pleasant Avenue. There also will be mulch and compost work, so volunteer shovelers are appreciated.