3. I. Elements to Symbols In this event, your team must use your knowledge of the periodic table to turn element names into the correct element symbol. WHAT ARE THE SYMBOLS FOR THE FOLLOWING ELEMENTS ? 1. HYDROGEN5. CALCIUM 2. IRON6. OXYGEN 3.POTASSIUM7. MAGNESIUM 4.FLOURINE

4. I. Elements to Symbols Answers 1.Hydrogen = H 2.Iron = Fe 3.Potassium = K 4.Flourine = F 5.Calcium = Ca 6.Oxygen = O 7.Magnesium = Mg

5. II. Symbols to Elements In this event your team must use your knowledge of the periodic table to turn element symbols into the correct element name. WHAT ARE THE ELEMENTS FOR THE FOLLOWING SYMBOLS? 8. Si12.C 9. Al13.Na 10. Cl14.Cu 11. Pb15.S

6. II. Symbols to Elements Answers 8.Si = silicon 9.Al = aluminum 10.Cl = chlorine 11.Pb = lead 12.C = carbon 13.Na = sodium 14.Cu = copper 15.S = sulfur

7. Minerals# of Elements # of Atoms Example: Quartz SiO 2 2 3 16. Pyrite FeS 17. Corundum Al 2 O 3 18. Galena PbS 19. Halite NaCl 20. Hematite Fe 2 O 3 21. Flourite CaF 2 22. Sulfur S 23. Muscovite KAl 3 Si 3 O 10 (OH) 2 24. Calcite CaCO 3 25. Talc Mg 3 Si 4 O 10 (OH) 2 IV. Element Breakdown Directions: In this activity your team will write down the number of different elements and the number of atoms that make up each mineral on the chart.

8. III. Element Breakdown Answers Minerals# of Elements # of Atoms Example: Quartz SiO 2 2 3 16. Pyrite FeS 22 17. Corundum Al 2 O 3 25 18. Galena PbS 22 19. Halite NaCl 22 20. Hematite Fe 2 O 3 25 21. Fluorite CaF 2 23 22. Sulfur S 11 23. Muscovite KAl 3 Si 3 O 10 (OH) 2 521 24. Calcite CaCO 3 35 25. Talc Mg 3 Si 4 O 10 (OH) 2 421

9. IV. Mineral Make-Up You need to have all possible answers to be correct. 26. Which mineral is carbonate, a compound that contains a combination of carbon and oxygen? 27. About 92% of the rock-forming minerals in the Earth’s crust are silicates, compounds that contain silicon, oxygen, and one or more metals. Which minerals are silicates? 28.Which minerals are oxides, compounds that consist of oxygen and one other element? 29.Which minerals are sulfides, compounds that consist of sulfur and one other element? 30.Which minerals are halides, compounds consisting of fluorine, chlorine, iodine, or bromine combined with sodium, potassium, or calcium? 31.Which element occurs most frequently in this table of minerals? 32.Which mineral is also considered a native element on the periodic table? Quartz SiO 2 Pyrite FeS Corundum Al 2 O 3 Galena PbS Halite NaCl Hematite Fe 2 O 3 Fluorite CaF 2 Sulfur S Muscovite KAl 3 Si 3 O 10 (OH) 2 Calcite CaCO 3 Talc Mg 3 Si 4 O 10 (OH) 2

10. IV. Mineral Make-Up Answers 26.Calcite 27.Muscovite; talc 28.Quartz; corundum; hematite 29.Galena; pyrite 30.Flourite; halite 31.Oxygen 32.sulfur

11. TIE BREAKER: Which minerals contain metals? Quartz SiO 2 Pyrite FeS Corundum Al 2 O 3 Galena PbS Halite NaCl Hematite Fe 2 O 3 Fluorite CaF 2 Sulfur S Muscovite KAl 3 Si 3 O 10 (OH) 2 Calcite CaCO 3 Talc Mg 3 Si 4 O 10 (OH) 2

12. Tie Breaker Muscovite Hematite Galena Pyrite Corundum Halite Flourite Calcite Talc

13. Bonus Questions B1. What are the basic building blocks of matter? B2. The center of an atom is called its ____________. B3. Which atomic particle has a negative charge? B4. Which atomic particle has a positive charge? B5. Pure substances that cannot be separated into simpler substances are called ________________.

14. Bonus Questions Answers B1 Atoms B2 Nucleus B3 Electron B4 Proton B5 Element

15. More Bonus Questions B6. What is the atomic weight of silicon (see below)? B7. How many protons are in silicon (see below)? B8. How many electrons are in silicon (see below)? B9. What is the atomic number of sodium (see below)? B10. How many neutrons are in sodium (see below)?

16. More Bonus Questions Answers B6. 28 B7. 14 B8. 14 B9. 11 B10. 12