What are fossils?
* How do stalactites and stalagmites form?
* Can rock melt? Janice VanCleave's Rocks and Minerals includes 20 fun and simpleexperiments that allow you to discover the answers to these andother fascinating questions about rocks and minerals, plus dozensof additional suggestions for developing your own science fairprojects. See how sedimentary rock is formed using two pillows, a yardstick, and some masking tape...