2003. Provides a cornerstone for understanding rocks and minerals, forces shaping the earth, earthquakes and volcanos, and more. 129 pages. Soft cover. Ages 8-Adult. EASY SCIENCE DEMOS & LABS. Thomas Kardos. These books are a collection of many classroom demonstrations. 10 specially created laboratory ideas for middle school level students help to present scientific ideas on a more concrete level, and add deeper level of understanding to the demonstrations. The labs are safe enough for young people to do on their own. Meet National Science Education Standards.