Can you recommend some fantasy science fiction children's books?

Sure. 'The Time Machine' by H.G. Wells can be considered for older children. It's a classic that explores time travel and different futures. 'The Hitchhiker's Guide to the Galaxy' by Douglas Adams also has elements that can appeal to kids. It's a humorous look at the galaxy. And then there's 'Charlotte's Web' by E.B. White. While it has some science - fiction - like elements in the talking animals, it also has a heartwarming story about friendship.

Well, 'The City of Ember' is a good choice. It's about a post - apocalyptic underground city which has some science - fictiony elements. Then there's 'Journey to the Center of the Earth' which is more of an adventure - filled science fiction that kids might enjoy. Also, 'The Iron Man' by Ted Hughes has a bit of a science - fiction feel to it as it's about a giant iron man.

Sure. 'The Little Prince' is a great one. It's a classic science fiction children's book that tells a story about a little prince from another planet. It has beautiful illustrations and deep thoughts that are presented in a simple and engaging way for children.

Another good one is 'A Wrinkle in Time'. It follows the story of Meg Murry as she travels through time and space to rescue her father. The book combines science fiction elements with themes of family, love, and courage.

One great example is 'A Wrinkle in Time' by Madeleine L'Engle. It combines elements of science fiction like time travel and different dimensions with a fantasy - like adventure. The characters are children who go on an epic journey to save their father and in the process, explore strange and magical worlds.

One great example is 'A Wrinkle in Time' by Madeleine L'Engle. It combines elements of fantasy and science fiction in a story that follows a young girl on an intergalactic adventure to save her father. Another is 'The Chronicles of Narnia' series by C.S. Lewis. It has magical creatures and different worlds, with a touch of religious allegory. And 'Ender's Game' by Orson Scott Card is also popular. It's about a young boy trained in a military - like space academy to fight an alien race.

One popular one is 'The Chronicles of Narnia' series. It takes children on magical adventures through the land of Narnia, filled with talking animals and epic battles between good and evil. Another is 'A Wrinkle in Time', which combines science fiction elements like time travel and different dimensions with a story of a girl's journey to save her father. And 'Harry Potter' series is also very well - known. It has a richly - imagined wizarding world full of magic, mystery, and friendship.

Some great children's fantasy science fiction books include 'The Giver' by Lois Lowry. It presents a seemingly utopian society with a dark underbelly, and the main character Jonas discovers the truth about his world. Then there's 'Percy Jackson & The Olympians' series by Rick Riordan. It combines Greek mythology with modern - day settings and adventures. Also, 'Artemis Fowl' by Eoin Colfer, which is about a young criminal mastermind who discovers the fairy world.

Sure. 'The Little Prince' is a great one. It's a story full of imagination, with the little prince traveling from planet to planet, meeting all kinds of strange characters. Another is 'A Wrinkle in Time' which takes kids on an inter - dimensional adventure to save the world. And 'Ender's Game' is also popular among children, following a young boy's journey in a military - like space training.

Well, 'Ancillary Mercy' by Ann Leckie is also a notable one. It's part of a great series. The story is complex, involving interesting characters and a far - reaching space - based civilization. It has elements of artificial intelligence and political intrigue.