20th Century YA and Middle Grade Science Fiction (625 books)

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Listopia > 20th Century YA and Middle Grade Science Fiction

This list is for YA and middle grade science fiction published in the 20th century.

No fantasy! Science fiction only, encompassing futuristic, dystopian, post-apocalyptic, and space themed stories. Books on this list must be published for the YA and middle grade market.

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1	A Wrinkle in Time (Time Quintet, #1) by Madeleine L'Engle 3.97 avg rating — 1,308,523 ratings score: 1,693, and 18 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
2	The Giver (Giver, #1) by Lois Lowry (Goodreads Author) 4.12 avg rating — 2,886,827 ratings score: 1,264, and 13 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
3	Ender’s Game (Ender's Saga, #1) by Orson Scott Card 4.31 avg rating — 1,498,477 ratings score: 1,090, and 11 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
4	Mrs. Frisby and the Rats of NIMH (Rats of NIMH, #1) by Robert C. O'Brien 4.17 avg rating — 187,485 ratings score: 559, and 6 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
5	Enchantress from the Stars (Elana, #1) by Sylvia Engdahl (Goodreads Author) 3.95 avg rating — 4,250 ratings score: 529, and 6 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
6	Escape to Witch Mountain by Alexander Key 3.91 avg rating — 3,682 ratings score: 472, and 5 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
7	The Tripods Trilogy (The Tripods, #1-3) by John Christopher 4.21 avg rating — 3,093 ratings score: 444, and 5 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
8	A Wind in the Door (Time Quintet, #2) by Madeleine L'Engle 3.98 avg rating — 133,992 ratings score: 422, and 5 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
9	This Time of Darkness by Helen Mary Hoover 4.30 avg rating — 714 ratings score: 391, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
10	A Wrinkle in Time Quintet (A Wrinkle in Time Quintet, #1-5) by Madeleine L'Engle 4.32 avg rating — 5,723 ratings score: 388, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
11	The Girl Who Owned a City by O.T. Nelson 3.78 avg rating — 5,535 ratings score: 378, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
12	The Forgotten Door by Alexander Key 4.11 avg rating — 2,840 ratings score: 376, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
12	Gathering Blue (Giver, #2) by Lois Lowry (Goodreads Author) 3.83 avg rating — 214,631 ratings score: 376, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
14	Anna to the Infinite Power by Mildred Ames 3.95 avg rating — 639 ratings score: 362, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
15	A Swiftly Tilting Planet (Time Quintet, #3) by Madeleine L'Engle 4.07 avg rating — 112,715 ratings score: 327, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
16	The White Mountains (The Tripods, #1) by John Christopher 3.95 avg rating — 15,047 ratings score: 324, and 4 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
17	Searching for Lucky #3002: A Ben and Blue Mystery by Ellen Melissa Cohen 4.74 avg rating — 38 ratings score: 300, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
18	This Place Has No Atmosphere by Paula Danziger 3.85 avg rating — 1,811 ratings score: 292, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
19	Podkayne of Mars by Robert A. Heinlein 3.67 avg rating — 9,692 ratings score: 290, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
20	A Tale of Time City by Diana Wynne Jones 3.86 avg rating — 5,523 ratings score: 287, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
20	The Last Book in the Universe by Rodman Philbrick 3.91 avg rating — 10,398 ratings score: 287, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
22	Out of the Silent Planet (The Space Trilogy, #1) by C.S. Lewis 3.94 avg rating — 111,038 ratings score: 284, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
23	Children of the Dust by Louise Lawrence 4.01 avg rating — 2,286 ratings score: 279, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
24	The Rolling Stones by Robert A. Heinlein 3.89 avg rating — 7,978 ratings score: 277, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
25	The Silver Metal Lover (Silver Metal Lover, #1) by Tanith Lee 4.04 avg rating — 4,320 ratings score: 273, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
26	Brother in the Land by Robert Swindells 3.96 avg rating — 1,578 ratings score: 271, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
27	Have Space Suit—Will Travel by Robert A. Heinlein 3.92 avg rating — 31,624 ratings score: 270, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
28	Empty World by John Christopher 3.83 avg rating — 1,020 ratings score: 269, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
29	Jumper (Jumper, #1) by Steven Gould (Goodreads Author) 3.93 avg rating — 16,421 ratings score: 268, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
30	The Girl with the Silver Eyes by Willo Davis Roberts 4.02 avg rating — 10,916 ratings score: 267, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
31	Among the Hidden (Shadow Children, #1) by Margaret Peterson Haddix 3.99 avg rating — 133,028 ratings score: 266, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
32	Journey Between Worlds by Sylvia Engdahl (Goodreads Author) 3.66 avg rating — 181 ratings score: 264, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
33	When the Tripods Came by John Christopher 3.81 avg rating — 4,953 ratings score: 240, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
33	The Keeper of the Isis Light (Isis, #1) by Monica Hughes 3.87 avg rating — 1,418 ratings score: 240, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
35	Z for Zachariah by Robert C. O'Brien 3.68 avg rating — 18,230 ratings score: 237, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
36	The Iron Giant by Ted Hughes 3.86 avg rating — 13,137 ratings score: 226, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
37	The Wonderful Flight to the Mushroom Planet (The Mushroom Planet, #1) by Eleanor Cameron 4.03 avg rating — 2,629 ratings score: 222, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
38	Lizard Music by Daniel Pinkwater 4.16 avg rating — 2,279 ratings score: 209, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
39	The City of Gold and Lead by John Christopher 4.09 avg rating — 9,319 ratings score: 206, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
40	Beyond the Dark River by Monica Hughes 3.54 avg rating — 24 ratings score: 203, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
41	Rite of Passage by Alexei Panshin 3.81 avg rating — 3,823 ratings score: 200, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
42	The Domes of Mars (Maurice Gray, #2) by Patrick Moore 3.83 avg rating — 6 ratings score: 199, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
42	A Princess of Mars (Barsoom, #1) by Edgar Rice Burroughs 3.81 avg rating — 61,468 ratings score: 199, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
44	The Martian Tales Trilogy (Barsoom #1-3) by Edgar Rice Burroughs 4.05 avg rating — 10,107 ratings score: 192, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
45	The Green Book by Jill Paton Walsh 3.68 avg rating — 1,827 ratings score: 191, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
46	The Runaway Robot by Lester del Rey 4.02 avg rating — 522 ratings score: 190, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
47	The Space Ship Under the Apple Tree by Louis Slobodkin 4.08 avg rating — 207 ratings score: 189, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
47	Kindred by Octavia E. Butler 4.31 avg rating — 290,586 ratings score: 189, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
49	The Alliance by Gerald N. Lund (Goodreads Author) 4.21 avg rating — 4,610 ratings score: 186, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
50	Ray Bradbury's The Martian Chronicles: The Authorized Adaptation (Ray Bradbury Graphic Novels) by Dennis Calero (Illustrator) 3.76 avg rating — 830 ratings score: 184, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
51	Winter of Fire by Sherryl Jordan 4.32 avg rating — 2,727 ratings score: 182, and 3 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
52	An Acceptable Time (Time Quintet, #5) by Madeleine L'Engle 3.78 avg rating — 24,339 ratings score: 180, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
53	The Isis Trilogy by Monica Hughes 4.18 avg rating — 55 ratings score: 177, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
54	The Hermit Thrush Sings by Susan Butler 4.14 avg rating — 463 ratings score: 176, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
54	Children of Morrow by Helen Mary Hoover 4.16 avg rating — 279 ratings score: 176, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
56	Off the Road by Nina Bawden 2.99 avg rating — 77 ratings score: 174, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
57	The Ennead by Jan Mark 3.27 avg rating — 49 ratings score: 173, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
58	Sprockets: A Little Robot by Alexander Key 4.46 avg rating — 39 ratings score: 172, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
59	The Far Side of Evil (Elana, #2) by Sylvia Engdahl (Goodreads Author) 3.98 avg rating — 574 ratings score: 171, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
60	But We Are Not of Earth by Jean E. Karl 4.18 avg rating — 100 ratings score: 167, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
61	Alan Mendelsohn, the Boy from Mars by Daniel Pinkwater 4.35 avg rating — 1,058 ratings score: 166, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
62	The Last Children by Gudrun Pausewang 3.92 avg rating — 1,157 ratings score: 165, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
62	Eva by Peter Dickinson 3.43 avg rating — 2,288 ratings score: 165, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
64	Moon of Three Rings (Moon Magic, #1) by Andre Norton 3.96 avg rating — 926 ratings score: 163, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
65	The Cure by Sonia Levitin 3.83 avg rating — 907 ratings score: 160, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
65	The Ear, the Eye, and the Arm by Nancy Farmer (Goodreads Author) 3.87 avg rating — 16,461 ratings score: 160, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
67	Children of Time by Deborah Moulton 3.97 avg rating — 38 ratings score: 159, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
67	Star Born (Pax/Astra, #2) by Andre Norton 3.91 avg rating — 1,737 ratings score: 159, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
69	A Rag, a Bone and a Hank of Hair by Nicholas Fisk 4.04 avg rating — 214 ratings score: 158, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
70	Journey Outside by Mary Q. Steele 3.69 avg rating — 330 ratings score: 153, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
71	Found by June Oldham 3.31 avg rating — 103 ratings score: 150, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
71	Star Dog by A.M. Lightner 4.07 avg rating — 108 ratings score: 150, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
73	Futuretrack 5 by Robert Westall 3.96 avg rating — 227 ratings score: 147, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
73	Galax-Arena by Gillian Rubinstein 3.82 avg rating — 785 ratings score: 147, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
75	Those Who Fall from the Sun by Josephine Rector Stone 3.33 avg rating — 3 ratings score: 146, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
76	Return from Witch Mountain by Alexander Key 3.79 avg rating — 616 ratings score: 143, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
77	Out There by Adrien Stoutenburg really liked it 4.00 avg rating — 11 ratings score: 142, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
78	The Other Side of the Sun by Madeleine L'Engle 3.86 avg rating — 2,307 ratings score: 140, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
79	Invitation to the Game by Monica Hughes 3.79 avg rating — 5,722 ratings score: 137, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
80	Star Man's Son, 2250 A.D by Andre Norton 4.02 avg rating — 2,664 ratings score: 133, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
81	The City Beyond the Gates by N. Roy Clifton 3.89 avg rating — 9 ratings score: 128, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
82	Outside by Andre Norton 3.83 avg rating — 105 ratings score: 127, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
83	Why Weeps the Brogan? by Hugh Scott (Author and Illustrator) 3.76 avg rating — 34 ratings score: 126, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
84	David Starr, Space Ranger (Lucky Starr, #1) by Paul French (Pseudonym) 3.72 avg rating — 3,927 ratings score: 124, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
85	The Dying Sun by Gary L. Blackwood (Goodreads Author) really liked it 4.00 avg rating — 14 ratings score: 123, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
86	Matthew Looney's Voyage to the Earth (Matthew and Maria Looney, #1) by Jerome Beatty Jr. 4.19 avg rating — 102 ratings score: 121, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
87	Tom Swift and His Flying Lab (Tom Swift Jr., #1) by Victor Appleton II 3.83 avg rating — 640 ratings score: 120, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
87	Lucky Starr and the Pirates of the Asteroids (Lucky Starr, #2) by Isaac Asimov 3.67 avg rating — 2,430 ratings score: 120, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
89	Lucky Starr and the Big Sun of Mercury (Lucky Starr, #4) by Isaac Asimov 3.67 avg rating — 2,028 ratings score: 119, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
89	Matthew Looney's Invasion of the Earth (Matthew and Maria Looney, #2) by Jerome Beatty Jr. 4.07 avg rating — 67 ratings score: 119, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
89	Lucky Starr and the Oceans of Venus (Lucky Starr, #3) by Isaac Asimov 3.67 avg rating — 2,026 ratings score: 119, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
92	The Tomorrow City by Monica Hughes 3.68 avg rating — 173 ratings score: 118, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
93	Portal to E'ewere by Irma Walker really liked it 4.00 avg rating — 15 ratings score: 117, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
94	Lucky Starr and the Moons of Jupiter (Lucky Starr, #5) by Isaac Asimov 3.73 avg rating — 1,785 ratings score: 116, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
94	The Rings of Saturn (Lucky Starr, #6) by Paul French (Pseudonym) 3.73 avg rating — 1,673 ratings score: 116, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
96	Matthew Looney and the Space Pirates (Matthew and Maria Looney, #4) by Jerome Beatty Jr. 4.15 avg rating — 46 ratings score: 115, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
97	Encounter Near Venus by Leonard Wibberley 4.19 avg rating — 26 ratings score: 114, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
98	Obernewtyn (The Obernewtyn Chronicles, #1) by Isobelle Carmody (Goodreads Author) 3.96 avg rating — 12,592 ratings score: 108, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
99	Tomorrow, When the War Began (Tomorrow, #1) by John Marsden 4.04 avg rating — 61,724 ratings score: 106, and 2 people voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars
100	Star Girl by Henry Winterfeld 4.13 avg rating — 153 ratings score: 100, and 1 person voted	Error rating book. Refresh and try again. Rate this book Clear rating 1 of 5 stars 2 of 5 stars 3 of 5 stars 4 of 5 stars 5 of 5 stars