A lemonade stand can teach you the laws of supply and demand. But how? As the weather shifts from day to day and a rival stand opens up, demand and supply shift, and so do prices.
"David A. Adler covers the basics of magnetism. Terms such as attraction, pole, electromagnetism and force are ... explained ... [and illustrated]. Suggested activities include instructions to make your own magnet"--Provided by publisher.
The characteristics of circles as well as how to find the radius, diameter, circumference, and area of a circle are explained and illustrated in this geometry picture book.
When Cam Jansen and her friend Eric go the music store at the mall for the latest CD by the Triceratops Pops band, Cam uses her photographic memory to foil a crime.