Reviews Come See the Earth Turn by Lori Mortensen, illustrations by Raúl Allén Share this:EmailFacebookTwitterPinterestPocketRedditPrint By Science News December 17, 2010 at 1:46 pm Aimed at kids age 7 to 9, this picture book shows how Léon Foucault and his pendulum demonstrated the Earth’s spin. Tricycle Press, 2010, 32 p., $17.99.