The rock cycle /
by Cheryl Jakab.
- North Mankato, MN : Smart Apple Media, 2007.
- 32 p. : col. ill. ; 29 cm.
- Earth's cycles .
Includes index.
Earth's natural cycles -- Rocks -- The rock cycle -- Volcanic rock -- Sand and sediment -- Sedimentary rock -- Metamorphic rock -- Soil -- The balance of nature -- Human activities -- Using rocks and soils wisely -- Ideas and tips saving rocks and soils -- Living with nature.