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Arizona State Parks & Trails: Apple Packing Shed Open House

Slide Rock State Park 6871 AZ-89A, Sedona

Experience a piece of Arizona history. Get an opportunity to explore the Pendley Homestead Apple Packing Shed. A ranger will be available to answer any questions about the homestead's history....

Free with Park Fee

Arizona State University: Earth Day Stadium Walk 2026

Mountain America Stadium 500 E. Veterans Way, Tempe

Join University Sustainability Practices and SRP for the free ASU Earth Day Walk at Mountain America Stadium. This unique celebration of sustainability includes a three lap walk around the stadium...

Free

Children’s Museum of Phoenix: Earth Day Expo

Children's Museum of Phoenix 215 N. 7th St., Phoenix

Join us in the Children’s Garden for fun and educational outdoor activities in celebration of Earth Day! Wednesday, April 22nd from 9am-1pm. HANDS-ON PROGRAMS INCLUDE: Compost Corner – Explore the world...

Free with Admission

Reid Park Zoo: Sean Kenney’s Nature Pop!

Reid Park Zoo 3400 Zoo Court, Tucson

Part art. Part engineering. Totally amazing! Add a pop of wonder and a pinch of nostalgia to your spring with Sean Kenney’s Nature Pop! Marvel at over 40 wildly creative...

Free with Admission

Tucson Botanical Gardens: Garden Story Time

Tucson Botanical Gardens 2150 N. Alvernon Way, Tucson

Join us every Wednesday at 10 am in the Education Classroom for an interactive story session. This fun hour features nature-themed stories, songs, puppets, and sensory activities! Held rain or...

Free with Admission

Mesa Public Library: Grow-a-Garden!

Mesa Public Library - Gateway Branch 5036 S. Eastmark Pkwy., Mesa

Join us as we celebrate Earth Day with some planting. We will have biodegradable starter cups, soil, and seeds. We just need you to plant them and watch them grow!

Free

Maricopa County Library District: Coral Reef Biomes

MCLDAZ - Litchfield Park Library 101 W. Wigwam Blvd., Litchfield Park

Celebrate Earth Day by learning about one of the world's most interesting ecosystems! We will discover the different ocean animals and plants living in coral reefs and use our knowledge...

Free

Avondale Public Library: More2Explore

Avondale Public Library - Sam Garcia Western Avenue Library 495 E. Western Ave., Avondale

Explore your SMART side with a variety of STEAM (Science, Technology, Engineering, Arts, and Mathematics) activities from painting and crafting to building and robotics. 2nd, 4th, and 5th Wednesdays. 2-3...

Free

Phoenix Public Library: Tween STEAM Activity!

Phoenix Public Library - Library in Laveen 3635 W. Baseline Rd., Laveen

Come join us at Cesar Chavez Library for a Tween STEAM activity! This activity is targeted for children ages 8-12.

Free

Maricopa County Library District: QC LEGO Club

MCLDAZ - Queen Creek Library 21802 S. Ellsworth Rd., Queen Creek

Calling all LEGO Masters! Join us each month as we create and display amazing LEGO creations. Don't forget to bring your creativity; you'll need it! •5-8 year olds with guardian/parent...

Free

Mesa Public Library: Earth Day Animal Spot-A-Thon

Mesa Public Library - Gateway Branch 5036 S. Eastmark Pkwy., Mesa

Celebrate Earth Day by helping scientists monitor wildlife! In this hands-on event, you’ll explore trail camera photos and help classify the animals you see. Your contributions support a NASA-supported research...

Free

Mesa Public Library: Mason Jar Beehives for Earth Day

Brady Park 7045 E. Monterey Ave., Mesa

Celebrate Earth Day with a creative, hands-on activity! Kids will make their own Mason Jar Beehives while learning why bees are so important to our planet. This craft introduces young...

Free

Flandrau Science Center & Planetarium: Touring the Solar System

Flandrau Science Center & Planetarium 1601 E. University Blvd., Tucson

Take a guided journey through the Solar System and explore what makes each planet unique—from Jupiter’s giant storms to Saturn’s rings. We’ll also visit moons, asteroids, and the Milky Way...

Free – $27

Phoenix Public Library: Block Party

Phoenix Public Library - Saguaro Library 2808 N. 46th St., Phoenix

Join us every Wednesday for a free form, brick building, engineering extravaganza!   Ages 3-12

Free

Maricopa County Library District: Fearless Kitty Rescue

MCLDAZ - Fountain Hills Branch 12901 N. La Montana Dr., Fountain Hills

Learn of the great work performed by Fearless Kitty Rescue in our community. Support their efforts by making upcycled cat toys.

Free

Maricopa County Library District: Earth Day Celebration!

MCLDAZ - Guadalupe Library 9241 S. Avenida Del Yaqui, Guadalupe

Come and celebrate Earth Day with us. We will learn some gardening techniques. Plant a sunflower seed in a pot for you to take home. All materials provided

Free

Phoenix Public Library: MACH2 – WeDo Wednesday LEGO Robotics

Phoenix Public Library - Cholla Library 10050 Metro Parkway E., Phoenix

Join us in MACH2 for WeDo Wednesdays: LEGO Robotics. Ready to build moving robots, learn how motors work, and do basic programming? WeDo Wednesdays is the place for you! For...

Free