1. How do sedimentary rocks form? (p ) 2. Clastic, chemical, and organic are 3 types of what? 3. What is stratification? 4. What type of chemical weathering produces corrosion and rust? (p )

1. Soil is a complex mixture of ___, ___, ___, and ___. 2. As plants and animals die, their remains decay and produce ___, a dark, organic material. 3. Draw and label the figure on p What is a soil profile? 5. READ YOUR LAB WHEN YOU FINISH.

1. Which mineral is most resistant to weathering? A. calcite B. hematite C. quartz D. feldspar 2. Soil is formed from: A. weathering rocks B. decaying plants C. microorganisms D. all of these 3. Which combo would produce the best soil for growing plants? (use the pyramid on your lab paper) A. 40% sand, 40% silt, 20% clay B. 70% sand, 10% silt, 20% clay C. 10% sand, 80% silt, 10% clay

A B C Answer A