American Association for the Advancement of Science needs scientists, engineers, mathematicians and physicians to assist K-12 STEM (science, technology, engineering and mathematics) teachers. Must attend a one-day orientation; hours are flexible. www.aaas.org. donaldrea@aol.com or 703-237-7683.

Arlington County Invasive Plant program needs volunteers to remove invasive plants. First Saturdays, Haley Park; second Saturdays, Lacey Woods Park; second Sundays, Gulf Branch Nature Center; third Saturdays, Tuckahoe Park; third Saturdays, Barcroft Park; third Sundays, Long Branch Nature Center; and fourth Saturdays, Benjamin Banneker Park. For information, visit www.environment.arlingtonva.us. To register, e-mail sarcher@arlingtonva.us or call 703-228-1862.

Arlington Food Assistance Center’s Plot Against Hunger program seeks local gardeners and farmers willing to grow and donate fresh produce to the AFAC food pantry. Vegetable seeds provided. Pick up seeds 8 a.m.-4 p.m. weekdays, 11:30 a.m.-1 p.m. Saturday at 2708 S. Nelson St., Arlington. www.afac.org. puwen.lee@afac.org or 703-845-8486.

Arlington Neighborhood Villages is accepting members who are Arlington County residents 55 and older and volunteers to help with programs and services. To apply, go to www.arlnvil.org. 703-509-8057.

Velocity Bicycle Cooperative seeks people to refurbish donated bicycles and organize charity events. Training provided. bayley.vanderpoel@velocitycoop.org or 703-863-4464.

Veterans Moving Forward, which provides service dogs for those with physical and mental health challenges, seeks foster puppy raisers. For information, visit www.vetsfwd.org. 800-375-1209.

Virginia Hospital Center Auxiliary in Arlington County offers opportunities to help on information desks, the surgical center and in gift shops. 703-558-6401.

Volunteer Services Tragedy Assistance Program for Survivors seeks volunteers for the annual National Military Survivor Seminar, 6 a.m.-10 p.m. May 21-26. volunteer@taps.org or 571-385-2512.

Washington-Lee High School seeks donations for the 2014 Graduation Boat Party on June 19 for needy seniors, teachers and parent chaperones. Mail checks payable to WL Senior Boat Party to Senior Boat Party Committee, 1301 N. Stafford St., Arlington, Va., 22201. detrissa@verizon.net.

Volunteer Alexandria: Call the numbers below or contact Volunteer Alexandria at 703-836-2176, mail@volunteeralexandria.org or www.volunteeralexandria.org for information on the following opportunities:

Alexandria Library, Beatley Branch seeks help for a knitting program for children, 7-8 p.m. Thursdays. creynolds@alexandria.lib.va.us or 703-746-1702.

Alexandria Sheriff’s Office needs teachers, mentors and facilitators. cherye.echane@alexandriava.gov or 703 746-5079.

Alexandria Tutoring Consortium needs kindergarten tutors. To register, go to www.alexandriatutors.org. atc@opmh.org or 703-549-6670, Ext. 119.

Alexandria Visitors Center at Ramsay House seeks tour volunteers. rcardone@visitalexva.com or 703-746-3313.

American Cancer Society’s Road to Recovery program needs drivers to take cancer patients to appointments. www.cancer.org or brenda.silvia-torma@cancer.org.

Northern Virginia Conservation Trust seeks volunteers for the Dora Kelley Nature Park invasive plant removal, 10 a.m.-noon May 24. Meet at Jerome Buddie Ford Nature Center, 5750 Sanger Ave. To register, go to handsonconnect.volunteeralexandria.org. soneil@nvct.org or 703-354-5093.

RSVP Northern Virginia offers volunteer opportunities at orientation workshops. They are 2 p.m. Wednesday and June 11 at Charles E. Beatley Central Library in Alexandria. To register, visit handsonconnect.volunteeralexandria.org.

Volunteer Alexandria seeks volunteers to help during the arts and crafts festival 12:30-9 p.m. June 14. To register, go to handsonconnect.volunteeralexandria.org. A receptionist is needed on weekdays. ACS@volunteeralexandria.org or 703-836-2176.

Volunteer Arlington: Call the numbers listed below, or contact Volunteer Arlington by calling 703-228-1760 or visiting www.arlingtonva.us/volunteer for information about the following opportunities:

Arlington County Department of Parks and Recreation needs volunteers to help children with disabilities learn to swim. 703-228-4738.

Communities in Schools of Northern Virginia seeks weekly Wednesday food distributors and in-school tutors for high school students, 703-228-8694.

Crisis Link needs volunteers to answer hotline calls during weekday, late-night and weekend hours. Training begins May 17, from 9 a.m.-4 p.m. To register, go to crisislink.org. volunteer@crisislink.org or 703-516-6778.

Doorways For Women and Families needs an overnight shelter coverage volunteer, an administrative office volunteer, homeless shelter assistants, assistance with children at the shelter and a domestic violence safehouse volunteer. www.doorwaysva.org. volunteer.truist.com or 703-504-9284.

Environmental Services OSEM seeks volunteers to check storm drains in their neighborhoods and affix the Sherlock Shad marker on drains that need it from May through October. A photographer for outdoor events is needed. 703-228-3042.

Jane Franklin Dance seeks individuals with experience in dance, arts marketing and social networks. Summer camp volunteers for young children are needed from July 14 to Aug. 15. 703-933-1111.

RSVP Northern Virginia will hold an orientation 2 p.m. Thursday at Arlington Central Library. www.volunteerfairfax.org. 703-403-5360.

Wesley Housing Development needs a computer skills instructor. www.wesleyhousing.org , volunteer.truist.com or 703-465-5001.

— Compiled by Ria Manglapus

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