Despite their scarcity, science fiction books are highly sought after by elementary school students.
I got interested in SF because the librarian in my elementary was a SF lover. There were racks of paperbacks that I gobbled up and it's stuck with me for decades since. It makes me sad to think that kids don't have the same chance I did to get interested at an early age in the most imaginative genre of fiction. We all need to do our part to pass it on.
What are your suggestions for getting young people interested in science fiction?
A few I remember from that time:
Edgar Rice Burroughs Barsoom series
Heinlein's juveniles like Podkayne of Mars and Have Spacesuit, Will Travel
My grade 8 teacher forced the entire class to read the first Dragonriders of Pern book. I then proceedes to devoure all of the rest, until her son took over and ruined it all.