Reuse, recycle and rethink. Take part in hands-on activities, learn how personal choices impact the environment and create strategies to combat degradation. Free with admission to the New York Hall of Science, 2:30 to 4:30 p.m. (and on April 22, from 11 a.m. to 5 p.m.), New York Hall of Science, 47-01 111th St., Flushing Meadows Corona Park, http://bit.ly/2pse4ab.
Romanticism and the Nationalistic Spirit
The Queens Symphony Orchestra will perform “Overture to Nabucco” by Verdi; “Carmen Suite No. 1” by Bizet; and “Symphony No. 8, Op. 88 in G Major” by Dvorak. Free, but reservations are required, 7:30 p.m., Queensborough Performing Arts Center, 222-05 56th Ave., Bayside, http://bit.ly/2prSUcA.
Baroque duo Black Marble performs 17th- and 18th-century works by Mozart, Leclair, Reger, Barbella and others. This husband-and-wife team plays Stainer violins that were crafted in 1660 and 1668. $15, 6:30 p.m., King Manor Museum, 150-03 Jamaica Ave.
Cathy Maguire and Friends
The New York Irish Center will host a night of the most famous and popular country songs by a former child star in Ireland. $70 (open bar), 7 p.m., New York Irish Center, 10-40 Jackson Ave., LIC, http://bit.ly/2eoJubw.
Jimena Paz: Yellow
This solo dance begins precisely two hours before sundown and concerns itself with the idea of foreignness. Performances include April 21 at 5:41 p.m.; April 22 at 5:42 p.m.; April 23 at 5:43 p.m.; April 28 at 5:49 p.m.; April 29 at 5:50 p.m.; and April 30 at 5:51 p.m. $20, The Chocolate Factory, 5-49 49th Ave., LIC, http://bit.ly/2nWs3W4.
MoveWorks will host four pieces exploring the psyche of a simple, yet comedic, country woman. Ballaro Dance will present three quirky works. The show will also perform on April 22. $15, 8 p.m., Green Space, 37-24 24th St., LIC, http://bit.ly/2d3hNSz.
“My Country Men”
The Black Spectrum Theatre will present a play by Harlan Penn from Trinidad and Tobago. $25/$35, 8 p.m. (the show will also perform at 8 p.m. on April 22 and 4 p.m. on April 23), Black Spectrum Theatre, Roy Wilkins Park, 177th Street and Baisley Boulevard, Jamaica, http://bit.ly/2oGkPUC.
Latin Dance Fiesta
Sisa Pakari Danza Ecuador, Ballet Folclórico Del Salvador, Ballet Folklórico Paraguayo Panambí Verá and Bombazo (Puerto Rican) Dance Company will take part in this lively and colorful show. $25, 8 p.m., Queens Theatre, 14 United Nations Ave. S., Flushing Meadows Corona Park.
The Queens Botanical Garden will offer tulip tours, bulb-planting demonstrations, crafts and thousands of spring tulips. The event will also be held on April 23. Free with admission, 12 p.m. to 4 p.m., Queens Botanical Garden, 43-50 Main St., Flushing, http://bit.ly/2oit1Ig.
Opening: Goryeo Buddhist Paintings
This exhibition displays works by three Korean artists— Joy Rock, Chang Ho Kang and Seoung Jo Hyun— who are inspired by Buddhist paintings from the Goryeo Dynasty (918-1392). $5 suggested donation, 5 p.m., Flushing Town Hall, 137-35 Northern Blvd.
Green Garden/Green Planet
The Voelker Orth Museum will host an afternoon of art, hands-on workshops and take-away information. Meet artist Nancy Rakoczy and such eco-friendly agencies as NYC H2O and Shore Walkers. $5 general admission or $8 per family, free for children under age 3, 1 p.m., Voelker Orth Museum, 149-19 38th Ave., Flushing.
If Music and Sweet Poetry Agree
Queens Consort—violin, yoder, cello, viola and harpsichord—presents English Baroque music by Handel, Purcell, Hayes, Arne and Flackton. This is the borough’s only professional early music ensemble playing on period instruments. $20, 7 p.m., St. Mark’s Church, 33-50 82nd St., Jackson Heights, http://bit.ly/2nWnzi8.
Earth Day Family Celebration
Take a sunset stroll through the trails and discover springtime treasures. Then, gather for fireside Native American stories and music honoring Mother Earth and the precious balance in the natural world. $5 and pre-registration is required, 7 p.m., Alley Pond Environmental Center, 228-06 Northern Blvd., Douglaston, http://bit.ly/2h4brrR.
Holi: The Spring Festival of Colors
This colorful event is presented by the Hindu Temple Society of North America. Performers from different nationalities and cultures express their joy of the changing season and gratitude to Mother Earth.
Free, 2 p.m., Queens Museum, NYC Building, Flushing Meadows Corona Park.
The Mamas Expo
This seventh annual show offers fun activities for children and info, products and services for parents. $16 for adults, $13 for children, 10 a.m. to 2 p.m., New York Hall of Science, 47-01 111th St., Flushing Meadows Corona Park, http://bit.ly/2oQkHCx.
Jacob Riis Settlement House: Past, Present and Future
Executive Director Christopher Hanway discusses the community center’s history and its namesake, social reformer Jacob A. Riis. $5 general admission and $3 for seniors and students, 2:30 p.m., Riis Settlement House, http://bit.ly/2efIfN0.
Adapted from the Broadway version, Dr. Seuss’ beloved characters find themselves intertwined in a crazy quilt adventure in which the power of imagination and the most miraculous “think” ever saves the day. $14, performances at 1 p.m. and 3 p.m., Queens Theatre, 14 United Nations Ave. S., Flushing Meadows Corona Park.
This Queensborough Performing Arts Center event will feature artists, singers, dancers and an element of audience involvement and interaction. Following the show, attendees can buy the art created live on-stage. $39 to $42, 3 p.m., Queensborough Performing Arts Center, 222-05 56th Ave., Bayside, http://bit.ly/2oFGXwV.
Fertile Ground New Works Showcase
Green Space will host a non-curated performance by Dugal Dance Projects, Jacques Movement Laboratory, Leah Moriarty and Solana Hoffman-Carter, Mariam Dingilian, Mei/Co Dance and Nazmo Dance Collective. $12, 7 p.m., Green Space, 37-24 24th St., LIC, http://bit.ly/2cLWk1d.
“Orchestra of Exiles”
Academy Award-nominated filmmaker Josh Aronson discusses his book “Orchestra of Exiles: The Story of Bronislaw Huberman, the Israel Philharmonic and the One Thousand Jews He Saved from Nazi Horrors” on Holocaust Memorial Day. $8 suggested donation, 1:30 p.m., Central Queens Y, 67-09 108th St., Forest Hills, http://bit.ly/2pbiS41.