Here are 10 fun and educational podcasts for kids that can help improve English speaking skills:

1. "Wow in the World": Hosted by Guy Raz and Mindy Thomas, this podcast explores intriguing topics in science and technology in an entertaining and accessible way, perfect for curious young minds.

2. "Story Pirates": This podcast features hilarious and creative stories written by kids and performed by professional actors. It's a great way to spark imagination and creativity while improving listening and storytelling skills.

3. "Brains On!": A science podcast for curious kids and adults alike, "Brains On!" explores a wide range of scientific topics with humor, interviews, and engaging storytelling.

4. "But Why: A Podcast for Curious Kids": In this podcast, kids ask questions about the world around them, and the hosts seek out answers with the help of experts. It's an excellent way to encourage curiosity and critical thinking skills.

5. "Circle Round": This storytelling podcast features folktales from around the world, told with music and sound effects. Each episode explores themes of kindness, empathy, and understanding, while also improving listening comprehension.

6. "Smash Boom Best": This podcast presents lively debates between two opposing ideas, such as "Dragons vs. Unicorns" or "Pizza vs. Tacos." It's a fun way to improve reasoning and argumentation skills while learning about different topics.

7. "The Past and The Curious": Delve into history with this entertaining podcast that explores fascinating stories from the past. Each episode is filled with humor, music, and interesting facts, making history come alive for young listeners.

8. "Tumble": A science podcast for kids, "Tumble" explores scientific discoveries and concepts through storytelling and interviews with scientists. It's a great way to inspire curiosity about the world and improve science literacy.

9. "The Alien Adventures of Finn Caspian": Join Finn Caspian and his friends on intergalactic adventures in this serialized podcast for kids. It's a fun way to improve listening skills while exploring imaginative worlds.

10. "Storynory": This podcast features classic stories, fairy tales, and original tales, read aloud by professional actors. It's perfect for improving listening comprehension and language skills while enjoying timeless stories.

These podcasts offer a mix of entertainment and education, providing valuable opportunities for kids to improve their English speaking skills while exploring diverse topics and narratives.