Monday, April 20, 2026

No events on this day.

Tuesday, April 21, 2026

• April 21, 2026 6:00 pm - 7:00 pm

  Maricopa County Library District: Upcycled Cassette Tape (Adult Craft)

April 21 @ 6:00 pm - 7:00 pm
Maricopa County Library District: Upcycled Cassette Tape (Adult Craft)
Celebrate Earth Day by upcycling an old cassette tape. Materials will be provided. Registration is required for all participants and must be 18 or older.
Free

Wednesday, April 22, 2026

• April 22, 2026 7:00 am - 10:30 am

  Maricopa County Parks and Recreation: Estrella – Earth Day Desert Defenders Event

April 22 @ 7:00 am - 10:30 am
Maricopa County Parks and Recreation: Estrella – Earth Day Desert Defenders Event
This hands-on event features a variety of fun and meaningful projects—perfect for anyone who enjoys getting their hands dirty (or wearing gloves!). Earth Day – Desert Defenders Event at Estrella Mountain Regional Park Join us on this Earth Day at Estrella Mountain Regional Park on April 22, 2026, from 7:00 AM to 10:30 AM. We’ll meet at the Nature Center parking lot....
Free with Park Fee
• April 22, 2026 8:00 am - 10:00 am

  Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Earth Day Animal Spot-A-Thon

April 22 @ 8:00 am - 10:00 am
Greater Phoenix City Nature Challenge 2026: Acts of Science – Connected − Earth Day Animal Spot-A-Thon
Help NASA-supported researchers study wildlife conservation from wherever you are. All you need is curiosity. Featured Project: Snapshot Wisconsin During this virtual event, you’ll explore trail camera photos and classify the animals you see to help track changes in wildlife that informs wildlife management and conservation decisions. Hear from the project scientists, ask questions, and discover...
Free
• April 22, 2026 9:00 am - 11:30 am

  Arizona State University: Earth Day Stadium Walk 2026

April 22 @ 9:00 am - 11:30 am
Arizona State University: Earth Day Stadium Walk 2026
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 and sustainability partner tabling fair located in the stadium at the Coca Cola Sun Deck, to learn about sustainability, enjoy light snacks, play games and...
Free
• April 22, 2026 9:00 am - 1:00 pm

  Children’s Museum of Phoenix: Earth Day Expo

April 22 @ 9:00 am - 1:00 pm
Children’s Museum of Phoenix: Earth Day Expo
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 of worms and roly-polies and build your own compost container to learn about how composting works Seed Bombs – Make a wildflower seed bomb to take...
Free with Admission
• April 22, 2026 10:00 am - 12:00 pm

  Maricopa County Library District: Earth Day- Presented by The City of Goodyear Water Department

April 22 @ 10:00 am - 12:00 pm
Maricopa County Library District: Earth Day- Presented by The City of Goodyear Water Department
Stop by Goodyear’s Water, Recycling, and Environmental team's table to say hello and discover how the City -and you as a resident- are critical in keeping our community and earth vibrant and healthy!
Free
• April 22, 2026 11:30 am - 5:00 pm

  Arizona State University: Earth Day 2026 – The Future We Build

April 22 @ 11:30 am - 5:00 pm
Arizona State University: Earth Day 2026 – The Future We Build
The Julie Ann Wrigley Global Futures Laboratory® invites you to celebrate Earth Day by exploring the future we build. Since 2021, GFL has served as Arizona State University’s hub for Earth Day. This year, we will celebrate Earth Day featuring an afternoon designed to connect our community, spark ideas and showcase pathways to a thriving planet. Starting...
Free
• April 22, 2026 1:00 pm - 2:00 pm

  Maricopa County Library District: Coral Reef Biomes

April 22 @ 1:00 pm - 2:00 pm
Maricopa County Library District: Coral Reef Biomes
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 to build coral reef dioramas using clay and more. This program is for tweens ages 8-12. Registration required.
Free
• April 22, 2026 3:00 pm - 5:00 pm

  Mesa Public Library: Citizen Science – Earth Day Animal Spot-a-thon

April 22 @ 3:00 pm - 5:00 pm
Mesa Public Library: Citizen Science – Earth Day Animal Spot-a-thon
Help scientists identify as many animals as possible in camera trap images. This event is a part of "Acts of Science: Connected," which will bring us all together in April to celebrate participation in real research for Citizen Science Month! SciStarter is aiming toward a shared goal of 2.5 million acts of science by the...
Free
• April 22, 2026 3:00 pm - 5:00 pm

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

April 22 @ 3:00 pm - 5:00 pm
Mesa Public Library: Earth Day Animal Spot-A-Thon
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 project that tracks changes in wildlife distributions and abundances over time—critical data that informs wildlife management and conservation decisions. This Citizen Science event is a...
Free
• April 22, 2026 3:00 pm - 5:00 pm

  Mesa Public Library: Walk-in Wednesday presents – Earth Day Animal Spot-A-Thon

April 22 @ 3:00 pm - 5:00 pm
Mesa Public Library: Walk-in Wednesday presents – Earth Day Animal Spot-A-Thon
This is a live, interactive Acts of Science connected event delivered by scientists and SciStarter educators. Featured Project Participants will identify animals in camera-trap images from real wildlife research projects. These observations help scientists monitor biodiversity and support conservation research worldwide. Participants will contribute to real research in real time, guided throughout the session, and...
Free
• April 22, 2026 3:00 pm - 5:00 pm

  Phoenix Public Library: Earth Day Animal Spot-A-Thon, a Do NASA Science LIVE! Event

April 22 @ 3:00 pm - 5:00 pm
Phoenix Public Library: Earth Day Animal Spot-A-Thon, a Do NASA Science LIVE! Event
Participants will identify animals in camera-trap images from real wildlife research projects. These observations help scientists monitor biodiversity and support conservation research worldwide.
Free
• April 22, 2026 3:30 pm - 4:30 pm

  Mesa Public Library: Mason Jar Beehives for Earth Day

April 22 @ 3:30 pm - 4:30 pm
Mesa Public Library: Mason Jar Beehives for Earth Day
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 learners to pollinators, plants, and simple ways they can help protect the environment. Participants will take home their beehive creation along with ideas for supporting...
Free
• April 22, 2026 4:00 pm - 5:00 pm

  Maricopa County Library District: Earth Day Celebration!

April 22 @ 4:00 pm - 5:00 pm
Maricopa County Library District: Earth Day Celebration!
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

Thursday, April 23, 2026

No events on this day.

Friday, April 24, 2026

No events on this day.

Saturday, April 25, 2026

• April 25, 2026 8:00 am - 11:00 am

  Maricopa County Parks and Recreation: Lake Pleasant – Earth Day Clean-Up

April 25 @ 8:00 am - 11:00 am
Maricopa County Parks and Recreation: Lake Pleasant – Earth Day Clean-Up
Date - Saturday, April 25, 2026, EARTH DAY LITTER PICK UP EVENT Time – 8:00 am -11:00 am Location – Lake Pleasant Regional Park, Main Entry.  Directions:  From central Phoenix, take I-17 north to Carefree Highway (SR 74).  Exit Carefree Hwy. and travel west 15 miles to Castle Hot Spring Road (Milepost 19).  Turn north...
Free with Park Fee
• April 25, 2026 9:00 am - 1:00 pm

  Phoenix Zoo: Earth Day

April 25 @ 9:00 am - 1:00 pm
Phoenix Zoo: Earth Day
We have the power to save our planet! Join us for games and activities and learn about conservation and renewable energy!
Free with Admission
• April 25, 2026 10:00 am - 12:00 pm

  Boyce Thompson Arboretum: Arbor Day

April 25 @ 10:00 am - 12:00 pm
Boyce Thompson Arboretum: Arbor Day
Join us at Boyce Thompson Arboretum for our third annual Arbor Day Celebration as we honor and celebrate the amazing world of trees! Families can enjoy a variety of tree-themed activities, hands-on crafts, and nature fun throughout the day. Girl Scouts who attend will earn the requirements for the Tree Promise Patch. The patch can...
Free with Admission
• April 25, 2026 10:00 am - 11:30 am

  Phoenix Public Library: Celebrate Earth Day with Harmon Library!

April 25 @ 10:00 am - 11:30 am
Phoenix Public Library: Celebrate Earth Day with Harmon Library!
Please join Harmon Library as we do various fun activities in honor of Earth Day! We will be planting seeds in our test garden, and other fun stuff.
Free
• April 25, 2026 10:30 am - 11:15 am

  Phoenix Public Library: Let’s Build a City for Earth Month!

April 25 @ 10:30 am - 11:15 am
Phoenix Public Library: Let’s Build a City for Earth Month!
Using upcycled items like cardboard, bubble wrap, wrapping paper and more, we will create a colorful, unique cityscape. Working individually and together we will craft buildings and bridges using just our imaginations and simple materials! Families are encouraged to participate in making and creating at Saguaro. Guided activities will include science, technology, engineering, arts, or...
Free

Sunday, April 26, 2026

No events on this day.