Science Fiction

Science fiction stories could never take place in real life.  They involve robots, time travel, aliens, technology, inventions, or future worlds.
 

Adams, Douglas.  The Hitchhiker's Guide to the Galaxy.
Ames, Mildred.  Anna to the Infinite Power.
Anderson, Kevin J.  Crisis at Crystal Reef. 
Applegate, K. A.  Remnants series.
Armstrong, Jennifer.  Fire-Us Trilogy.
Askounis, Christina.  The Dream of the Stone.
Barron, T. A.  Heartlight.
Bell, Hilari.  Songs of Power.
Buffie, Margaret.  The Watcher.
Butler, Susan.  The Hermit Thrush Sings.
Card, Orson Scott.  Ender's Game. 
Ciencin, Scott.  Dinoverse.
Clements, Andrew.  Things Not Seen.
Cormier, Robert.  Fade. 
Cowley, Joy.  Starbright and the Dream Eater.
Danziger, Paula.  This Place Has No Atmosphere.
Dickinson, Peter.  Eva.
Dodd, Quentin.  The Princess of Neptune.
duPrau, Jeanne.  The City of Ember.
Engdahl, Sylvia Louise.  The Far Side of Evil.
Farmer, Nancy.  The Ear, the Eye, and the Arm.
Farmer, Nancy.  The House of the Scorpion.
Griffin, Peni R.  Switching Well.
Haddix, Margaret Peterson.  Among the Hidden.
Haddix, Margaret Peterson.  Turnabout.
Halam, Ann.  Taylor Five. 
Harrison, Troon.  Eye of the Wolf. 
Hoffman, Mary.  Stravaganza: City of Masks.
Jeapes, Ben.  The Xenocide Mission.
Kaye, Marilyn.  The Best of the Best.
Kaye, Marilyn.  Like Father, Like Son.
Klause, Annette Curtis.  Alien Secrets.
Lawrence, Louise.  Andra.
L'Engle, Madeleine.  A Wrinkle in Time series.
Levitin, Sonia.  The Cure.
Lowry, Lois.  The Giver.
Lowry, Lois.  Messenger. 
Luiken, Nicole.  Violet Eyes: A Novel.
Paulsen, Gary.  The Time Hackers. 
Paulsen, Gary.  The Transall Saga.
Paulsen, Gary.  The White Fox Chronicles.
Payne, Bernal C.  Experiment in Terror.
Pratchett, Terry.  The Bromeliad Trilogy.
Reeve, Philip.  Mortal Engines: A Novel.
Reiss, Kathryn.  Paint by Magic.
Sanders, Scott R.  The Engineer of Beasts.
Scrimger, Richard.  Noses Are Red. 
Sedgwick, Marcus.  Floodland.
Shusterman, Neal.  Downsiders: A Novel.
Skinner, David.  Thundershine: Tales of Metakids.
Skurzynski, Gloria.  Virtual War.
Sleator, William.  Boltzmon!
Sleator, William.  Parasite Pig.
Spielberg, Steven.  Close Encounters of the Third Kind: A Novel.
Stahler Jr., David.  Truesight. 
Vande Velde, Vivian.  Heir Apparent.
Westwood, Chris.  Virtual World.
Williams, Maiya.  The Golden Hour. 
Williams, Mark London.  Ancient Fire. 
Zindel, Paul.  Rats.