Celebrate Earth Day on Sunday (and maybe plant a tree)

Sunday is Earth Day, the annual call to action to preserve the natural environment, and many locales around Puget Sound are marking the occasion with special events. Some locales are also celebrating Arbor Day. Here's a roundup:

King County Earth Day Expo

FRI Information from eco-friendly businesses, community organizations and government groups on green-friendly products and services, kids' activities, tour a veggie-powered bus, 10 a.m.-2 p.m. Friday, Westlake Plaza, Fourth Avenue and Pine Street, Seattle (www.metrokc.gov).

Earth Day at Northgate Community Center

FRI Family craft activity, 6-8 p.m., movie "Ferngully: The Last Rainforest" with pizza and popcorn, 6:45-8 p.m. Friday, Northgate Community Center, 10510 Fifth Ave. N.E., Seattle; $5/family (206-386-4283).

Earth Day/Arbor Day

at Seattle parks

SAT Work parties for park habitat:

• 1-4 p.m. Saturday, Discovery Park, 3801 W. Government Way, Seattle (206-386-4236);

• 10 a.m.-12:30 p.m. Saturday, Ravenna Park, Northeast 62nd Street and 15th Avenue Northeast, Seattle (206-684-4075);

• 8:30 a.m.-1 p.m. Saturday, Carkeek Park, 950 N.W. Carkeek Park Road, Seattle (206-684-0877);

• 9 a.m.-3 p.m. Saturday, Graham Visitors Center, Washington Park Arboretum, Seattle (206-726-1954);

• West Duwamish Greenbelt project with EarthCorps, 9:30 a.m.-3 p.m. Saturday, meet at South Seattle Community College parking lot, 6000 16th Ave. S.W., Seattle (206-793-8030, ext. 217).

Ballard High School Computer E-Cycle Fundraiser

SAT Ballard High School (BHS) Computer Club and the nonprofit InterConnection of Fremont e-cycle event to collect used computers, monitors, printers and televisions for a fee as a fundraiser for future international computer donation projects, 9 a.m.-4 p.m. Saturday, Ballard High School north staff parking lot, 1418 N.W. 65th St., Seattle; fees $5-$60 (206-252-1043).

West Point Water Treatment Plant Tour

SAT Earth Day open house and tour of wastewater treatment plant to learn about its role in protecting water quality, with displays and information on safe home cleaning products and natural methods for lawn and garden care, 10 a.m.-noon Saturday, Discovery Park, 3801 W. Government Way, Seattle (206-296-8361).

Earth Day/Arbor Day

SAT Join the Bellevue Parks Department celebrating the environment, with volunteer projects, arts and crafts, nature classes, Bellevue Arts Museum craft project for kids, 10 a.m.-2 p.m. Saturday, Lewis Creek Park, 5808 Lakemont Blvd., Bellevue; free (425-519-0770).

Earth Kits for Earth Day

SAT Eastside Green Team and YMCA Earth Service Corps volunteers hand out free information and items about climate change,

• noon-4 p.m. Saturday, Bellevue Regional Library, 1111 110th Ave. N.E., Bellevue (425-450-1765).

• noon-4 p.m. Saturday, Kirkland Library, 308 Kirkland Ave., Kirkland (425-822-2459).

• noon-4 p.m. Saturday, Redmond Library, 15990 N.E. 85th St., Redmond (425-885-1861).

• noon-4 p.m. Saturday, Bothell Regional Library, 18215 98th Ave. N.E., Bothell (425-486-7811).

Earth Day, Bridle Trails Park

SAT Help remove invasive plants, snacks provided, bring work gloves, 9 a.m.-12:30 p.m. Saturday, Bridle Trails State Park, Northeast 53rd Street and 116th Avenue Northeast, Kirkland (425-827-6595 or www.bridletrails.org).

Earth Day at St. Edward State Park

SAT Bird walk, tours, eco-gardening and recycling information, music, gym and pool access, water-safety information, 9 a.m.-3 p.m. Saturday, St. Edward State Park, 14445 Juanita Drive N.E., Kenmore (425-823-2992).

Woodinville Earth/Arbor Day

SAT Earth Day and Arbor Day City of Woodinville volunteer habitat restoration event and promoting recycling and tree care to restore native plants along the Sammamish River, individuals, families, small and large groups are welcome, 10 a.m.-2 p.m. Saturday, Wilmot Gateway Park, 1730 N.E. 131st Ave., Woodinville;; rain barrels and compost bins will be on sale (while supplies last) for $15 each at the Spring Garden Fair, 9 a.m.-3:30 p.m. Saturday, Woodmoor Elementary School, 12225 N.E. 160th St., Bothell (425-489-2700).

Ride Metro free

SUN Bus rides free all day anywhere in King County in celebrating Earth Day, learn to use the bus system as an earth-friendly alternative to driving your own vehicle; Sound Transit, Community Transit and Pierce Transit bus service also free Sunday (206-553-3000 or www.metrokc.gov).

Earth Day/Family Day

SUN Family celebration of Mother Nature with music, art projects with recycled materials and natural products, tree-planting and activities to learn about our environment and ways to protect earth, noon-4 p.m. Sunday, Bellevue Arts Museum, 510 Bellevue Way N.E., Bellevue; admission by two canned-food bank donations per person (425-519-0770).

Earth Day At KidsQuest

SUN Recycled crayon craft to help teach children the importance of recycling and taking care of earth, 10 a.m.-5 p.m. Sunday, KidsQuest Children's Museum, 4089 Factoria Blvd. S.E., Bellevue (425-637-8100).

Healthy Planet Fair

SUN Information, music and kids activities including learning to play Xeko, an eco-adventure game for kids ages 8 and older to learn about earth's endangered ecosystems, 9 a.m.-1 p.m. Sunday, Whole Foods, 888 116th Ave. N.E., Bellevue (425-462-1400, ext. 712).

Earth Day Party

for the Planet

SUN Earth-friendly, kid-friendly activities to connect visitors with nature, 10 a.m.-4 p.m. Sunday, Point Defiance Zoo & Aquarium, 5400 N. Pearl St., Tacoma; included with admission, $3-$10 (253-591-5337).

Earth Day celebration

SUN Community festival with speakers on science, health, energy and green building practices, walking tour of sustainable design elements, art show, music, information, children's activities, 11 a.m.-7 p.m. Sunday, Bayview Corner Cash Store, 5603 Bayview Road, Langley, Whidbey Island; free (360-321-4145).

Northwest Natural Yard Days

ONGOING King County, City of Seattle, Washington State Dept. of Ecology and local retailers and nurseries project offering discounts on natural yard products, through May 15 (206-633-0224 or www.metrokc.gov/dnrp/swd).

Camp Long Arbor Day Celebration

PLAN AHEAD Learn about healthy forests, work on forest restoration project, lunch included; for all ages, 9:30 a.m.-1 p.m. April 28, Camp Long, 5200 35th Ave. S.W., Seattle; $9, register by April 26 (206-684-7434).