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Friends of the San Pedro River: San Pedro House Nature Walk

San Pedro House 9800 Highway 90, Sierra Vista

The San Pedro River is one of the last free flowing rivers in the Southwest and home  to one of the largest cottonwood-willow riparian forests remaining in Arizona. On this...

Free

Maricopa County Parks and Recreation: Mesquite Festival

Hassayampa River Preserve 49614 U.S. Hwy. 60 89, Wickenburg

Check out the Mesquite Festival at Hassayampa River Preserve at this free, family-friendly community event.  Discover all the “Tree of Life”, Mesquite, has to offer at this FREE, family-friendly community event. There will be cooking tips, food sampling, kids games, and information on the ecology, history, gardening and landscaping, nutritional and medicinal uses of this...

Free

Mission Garden: Agave Roast & Learn

Mission Garden 946 W. Mission Ln., Tucson

This event is free. All gifts are appreciated.—they help the garden grow. Come experience an agave roast and learn about these plants’ many uses! Members of the Hualapai tribe will...

Free

Chandler Public Library: Downtown Scavenger Hunt – Earth Day

Chandler Public Library - Downtown Campus 22 S. Delaware St., Chandler

Stop by all month long at the Downtown Branch and test your detective skills with our scavenger hunt for a chance to earn a prize! This month's Earth Day theme runs through April 30th. Explore every nook of your library to complete the hunt, and along the way, discover something new your library has to offer! The hidden...

Free

Friends of the San Pedro River: History Walk at Murray Springs Clovis Site

Join docents from the Friends of the San Pedro River for a tour of the Murray Springs mammoth kill site. Vance Haynes led an expedition here in the 1970s that found the remains of megafauna that had been hunted, killed, butchered, and consumed by the Clovis Paleo-Indians 13,000 years ago. This is an easy walk...

Free

City of Chandler: Earth Day Celebration

Chandler Nature Center 4050 E. Chandler Heights Rd., Chandler

Show Mother Earth some love and do a world of good. Discover ways to live an eco-friendly lifestyle through crafts, activities, and information booths featuring a variety of organizations promoting “green” products, conservation, and sustainability. Outdoor activities may be canceled due to inclement weather.

Free

Pinal County Library District: STEM – Think Outside the Box!

Pinal County Library District - Apache Junction Public Library 1177 N. Idaho Rd., Apache Junction

STEM 3.0  This year each Saturday the STEM Challenge will be to Think Outside the Box! For those who meet the challenge you win a free book!! This program is for grades 3 through 8 (ages 8 - 12), and please note that we may be using hot glue guns for some of the activities.  No...

Free

Liberty Wildlife: Public Open Hours

Liberty Wildlife 2600 E. Elwood St., Phoenix

Join us to walk around Liberty Wildlife during our public open hours and see us fulfilling our mission! October through April we are open to the public from 10am until 1pm. Our admission is $10 per adult (18+) and $5 per student (under 18). Children 4 and under are free. We will have daily programs...

Free – $10

Surprise Public Library: Ladybug Release

Surprise Public Library - Surprise Regional Library 16089 N. Bullard Ave., Surprise

Spring into the Library! Join staff at the Surprise Regional Library as we release thousands of ladybugs outside. Everyone is welcome to join us!

Free

Flandrau Science Center & Planetarium: Black Holes

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

Where do they come from? Where do they go? Black Holes takes you on a fully immersive journey through one of the most mystifying, awe-inspiring phenomena in the universe: a black hole. Planetarium Tickets Adults: $12 Children (ages 3-15): $8 Children ages 2 and under: Free Discounted Rates Seniors (55+) and Military: $10 College ID Holders: $8 Flandrau Members:...

Free – $12

Maricopa County Parks and Recreation: Discovery Station – Be a Citizen Scientist!

White Tank Mountain Regional Park 20304 W. White Tank Mountain Rd., Waddell

Stop by an information table where Ranger Nikki will teach you how to use your phone to identify and document your nature findings to help the scientific community.   Ranger Nikki will host a drop-in information table to get you on your way to becoming a Citizen Scientist using the free iNaturalist app* that identifies and...

Free with Park Fee

Maricopa County Parks and Recreation: Discovery Station – Connect with Nature through your Phone

Lake Pleasant Regional Park 41835 N. Castle Hot Springs Rd., Morristown

Stop by an information table where Ranger Jacque will teach you how to use your phone to identify and document your nature findings to help the scientific community.  Love nature but don't know what plants and animals live in the desert? Take the guessing game out of naming your finds and learn how to identify...

Free with Park Fee

National Park Service: Ranger Patio Talk

Coronado National Memorial 4101 W Montezuma Canyon Rd, Hereford

Join a ranger for a 15 minute talk at the Coronado National Memorial Visitor Center and learn about a variety of park topics including the Coronado Expedition, wildlife, and more! Ask a ranger at the visitor center desk for the topic of the day. Free with Park Fee

Free with Park Fee

Yuma County Library District: Flippers, Fins, and Fangs, Oh My!

Yuma County Library District - Heritage Library 350 Third Ave., Yuma

Have you ever seen an ooey, gooey fish? Or one with a see through body? How about one with a human looking face? Come learn more about these fascinating creatures and afterwards play a game of magnetic fishing. Ages 4-12. Supplies and seating are limited.

Free

Avondale Public Library: STEAMFEST

Avondale Public Library - Civic Center Library 11350 W. Civic Center Dr., Avondale

The Civic Center Library is hosting a family-friendly extravaganza that celebrates Science, Technology, Engineering, Art, and Math! This event promises to be a fun-filled day of activities that will engage...

Free

Embry – Riddle Aeronautical University: 2024 Total Solar Eclipse Recap

Embry - Riddle Aeronautical University Jim and Linda Lee Planetarium 3700 Willow Creek Rd., Prescott

After the total solar eclipse makes its way across parts of the United States on April 8th, 2024, the planetarium will provide a special recap event on April 20th. We will share exciting views taken of the eclipse from eminent astronomical institutions, including Lowell Observatory; set up solar telescopes for close-up views of the Sun...

Maricopa County Library District: Earth Day Celebration!

MCLDAZ - Georgia T. Lord Library 1900 N. Civic Square, Goodyear

Visit our Earth Day tabling event with Xerces Society, Master Naturalists, and The City of Goodyear Recycling and Water Department! The Xerces Society provides information on the world of entomology....

Free

Embry – Riddle Aeronautical University: The Cosmic Webb

Embry - Riddle Aeronautical University Jim and Linda Lee Planetarium 3700 Willow Creek Rd., Prescott

We are excited to be able to provide a special reshowing of our live planetarium show "The Cosmic Webb" for this weekend only! In a planetarium show uniquely created for our inaugural Celestial Spring Gala, we use the three movements of a London Symphony Orchestra recording of Rachmaninoff’s 2nd Piano Concerto to delve into three...

$15

Mesa Public Library: Origami for Kids

Mesa Public Library - Main Branch 64 E. First St., Mesa

Come by and learn the Japanese art of paper-folding! We'll introduce you to easy, medium, and hard levels, for everyone to enjoy. Ages 8 -12.

Free

Flandrau Science Center & Planetarium: Tucson Sky & Beyond

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

Take a relaxing look at the night sky as we give you a guided tour of the stars, planets, constellations and current events happening in Tucson's night sky. This live astronomy talk is constantly changing! Recommended for general audiences. Themes: Stars, planets, constellations, mythology Style: Live presentation Planetarium Tickets Adults: $12 Children (ages 3-15): $8 Children ages...

Free – $12

Mt. Lemmon SkyCenter: SkyNights StarGazing Program

Mt. Lemmon SkyCenter 9800 Ski Run Rd. Mt., Lemmon

Explore the night skies from the summit of Mt. Lemmon using Arizona's LARGEST publicly available telescopes!  Under the guidance of a professional, visitors will enjoy a brief astronomy lecture, a light dinner, and an exclusive opportunity to observe astronomical objects and phenomena.  This five-hour program starts 2 hours prior to sunset and accommodates up to...

$60 – $85

Lowell Observatory: Meet A Planetary Astronomer

Lowell Observatory 1400 W. Mars Hill Rd., Flagstaff

This Saturday, come up to Mars Hill and meet Lowell Planetary Astronomer, Dr. Larry Wasserman! Take a peek at real-time images of planets, stars, galaxies and other celestial objects to be displayed on a large television screen outdoors with our new MallinCam. This is your opportunity to see interesting objects in the night sky, learn about...

Free with Admission