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Tinkercast | Wondery


The #1 science podcast for kids and their grown-ups. Hosts Mindy Thomas and Guy Raz share stories about the latest news in science, technology, and innovation. Stories that give kids hope, agency and make us all say "WOW"!

New episodes come out every Monday for free. Listen 1-week early and to all episodes ad-free with Wondery+, Wondery+ Kids on Apple Podcasts, or Amazon Music with a Prime membership or Amazon Music Unlimited subscription.


Wow in the World

Welcome to WeWow Creepy Crawly Week! Dennis gets the fright of his life when Mindy asks him to take care of her pet... COCKROACH?! Join Dennis, Reggie, and their creepy crawly new guest for an encore of "The Karate Kickin' Cockroach!" Grownups, for more Halloween ideas and activities for your Wowzers, visit https://bit.ly/408pVeL!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow Creepy Crawly Week - Day 1: Bugs Are Gross! (10/27/25)

Dennis and Reggie hang out with Baby Dennis and answer questions from their devoted listeners. Plus an encore episode, “If You’re Happy and You Know It!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/8/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (10/26/25)

Dennis and Reggie chit-chat and answer questions from their devoted listeners. Plus an encore episode, “Cuckoo for Cocoa!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/7/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (10/25/25)

Episode on this of A Wow and Two Whats, doing things backwards we are! Yep - It’s our backwards episode! Guy Raz and Mindy will get everything headed in the right direction and sort all “Wrong-way Whats” from the “forward-facing Wows." Want more WHATs and WOWs? Visit https://bit.ly/40hR1P0. Did you know you can watch full episodes of Two Whats?! And A Wow! on YouTube and YouTube Kids?! Visit https://bit.ly/3WlHLbk to start watching and WOWing with us!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Two Whats?! And A Wow! - Wardsback? (10/24/25)

Mindy, Guy and the rest of the WOW crew are on the verge of winning their first baseball game all season, and Mindy has a secret weapon to get them over the edge; a bucket of mud! But is this age-old tradition of muddying up baseballs superstition .... or science? It’s the who, when, where, why, how, and WOW of baseball magic!

For more WOWs online, visit https://bit.ly/3DWotmC. Grownups, help support our podcast and our mission to create content and experiences that connect laughter to learning, curiosity to innovation and kids to the WOWs in their world!

Join the World Organization of Wowzers today and receive quarterly mailings and birthday cards, access to 1000+ digital activities, first dibs at live show tickets, plus a welcome kit with t-shirt and an autograph from Mindy & Guy Raz! Visit https://bit.ly/40xiRrH to sign your Wowzer up for a membership to the World Organization of Wowzers today!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Baseball's Magic Mud: Superstition or Science? (10/20/25)

Dennis and Reggie interview Post Officer Jellybird! Plus an encore episode of, “Brain Freeze!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 10/1/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (10/19/25)

Dennis and Reggie get a visit from the neighborhood mail carrier and play What’s In This Box! Plus an encore episode of, "The Fish With The Killer Kiss!" If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 9/30/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (10/18/25)

The inspiration for this episode of Two Whats?! And A Wow! can be found at the end of your arms. It's all about hands! Guy Raz and Mindy will lend a hand (see what we did there?) to sort out the finger facts from the digit deceits. Want more WHATs and WOWs? Visit https://bit.ly/40hR1P0. Did you know you can watch full episodes of Two Whats?! And A Wow! on YouTube and YouTube Kids?! Visit https://bit.ly/3WlHLbk to start watching and WOWing with us!

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Two Whats?! And A Wow! - Lend a Hand (10/17/25)

Wake up and WOW, Wowzers! Mindy, Guy Raz, and the WOW Crew are headed to the morning news! Join them along with anchors Gail Richard Simmon and Bob Ralph Nadar as they search to find the hard-hitting truth behind T-Rex's tiny arms! It's the who, when, how and WOW of T-Rex arms! Originally aired 5/16/22.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

G-Rex (10/13/25)

Dennis and Reggie read some reviewsies! Plus an encore episode of, “Chill Out(Side)!” If you have a question for Dennis, leave him a voicemail at 1-888-7WOW-WOW. Your question might just end up on WeWow on the Weekend! For more WeWow visit https://bit.ly/3nkbEuo. Originally aired 9/24/23.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

WeWow on the Weekend (10/12/25)

How in the world does recess make us smarter? Where in the world do kids enjoy the most of it? Join Guy Raz and Mindy Thomas on an expedition to better understand the science of taking a break! It's the Who, What, When, Where, Why, How, and Wow in the World of RECESS! Originally aired August 21, 2017.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Recess 101

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