Horrible Science

144 pages paperback 2003

nonfiction childrens science adventurous slow-paced

127 pages paperback 2004

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144 pages 2002

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224 pages 2000

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128 pages paperback 2006

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160 pages 1998

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144 pages paperback 2001

nonfiction childrens science informative medium-paced

160 pages paperback 1999

nonfiction childrens science funny informative medium-paced

160 pages 1998

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160 pages paperback 2000

nonfiction childrens science informative medium-paced