ISBN-13: 9780486492629 / Angielski / Miękka / 2013 / 32 str.
Encourage young minds to explore the principles of water science with this captivating book of experiments. Simple demonstrations and complete photographsillustratehow to make a boat float, purify dirty water, and employ the power of hydraulics. "Try It and See" sidebars suggest further exploration and "How It Works"panels explain scientific ideas."