I Know Why I Brush My Teeth (Sam's Science)
by Kate Rowan,Katharine McEwen
ISBN 13: 9780744572322
Format: Paperback (32 pages) Publisher: Walker Books Ltd Published: 03 Jul 2000
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Sam's Science: I Know How We Fight Germs
ISBN 13: 9780744572223
Format: Paperback (32 pages) Publisher: Walker Books Ltd Published: 01 Jul 2000 Other Format: Hardcover
Sam's Science: I Know How My Cells Make Me Grow
ISBN 13: 9780744572346
Format: Paperback (32 pages) Publisher: Walker Books Ltd Published: 03 Jul 2000 Other Format: Hardcover