|Other Retailer||Price Checked Time||Their Price in AUD||Our Price|
|Amazon UK||7 days ago||35.57||$21.55||You save $14.02|
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E. Richard Churchill, Louis V. Loeschnig, and Muriel Mandell are authors of books in the No-Sweat Science series. They each have written several other science-related books for children and young adults.