Soil
Decaying animals and plants.
What is humus?
What element has the symbol He?
What is helium?
What is the softest mineral?
What is talc?
What are the 3 types of rocks?
What is sedimentary, metamorphic, and igneous.
What does "E.D.C.C." stand for?
What is erosion, deposition, compaction, cementation?
How many types of soil are there in the US?
What is 5?
What is carbon's symbol?
What is C?
What is the hardest mineral in the world?
What is Diamond?
What type of rock is formed by heat and pressure?
What is metamorphic?
All rocks are made of one or more ____________?
What is minerals?
In what layer is weathered rock?
What is C horizon?
What is the atomic number for Iodine?
What is 53?
What can a diamond be scratched by?
What is itself?
What type of rock is formed by volcanic activity?
What is igneous?
What is the number on top of an element?
What is atomic number?
The D horizon is also known as ___.
What is bedrock?
The are two numbers on an element, atomic number and atomic ___?
What is mass?
Difference between a rock and a mineral?
What is a rock is made up of lots of little tiny minerals. Minerals are made up of different elements?
What type of rock is formed by weathering and erosion?
What is sedimentary?
What is the number below an element?
What is atomic mass?
Action of percolating liquid, especially rainwater, is called what?
What is leaching?
How many elements are there?
What is 118?
| 1. Talc 2. ______ 3. Calcite 4. Fluorite 5. Apatite 6. Feldspar 7. Quartz 8. Topaz 9. Corundum 10. Diamond |
What is gypsum?
Rock that cools on top of the Earth's surface is what type of rock?
What is extrusive igneous?
What two elements make up 90% of all the minerals in the earths crust?
What is oxygen and silicon?