1. Periodic Table Olympics

2. 1. Oxygen 6. Sodium 2. Silicon 7. Potassium Aluminum 8. Magnesium
#1 GEOSPHERE: Elements within the Earth 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. Oxygen Sodium
2. Silicon Potassium
Aluminum Magnesium
Iron Nickel
Calcium 10. Iridium

3. #1 GEOSPHERE: Elements to Symbols Answers
Oxygen = O
Silicon = Si
Aluminum = Al
Iron = Fe
Calcium = Ca
Sodium = Na
Potassium = K
Magnesium = Mg
Nickel = Ni
Iridium = Ir

4. Radioactive Element Name Radioactive Element Symbol
#2 GEOSPHERE: Radioactive Decay Complete the following table of radioactive elements and the stable elements they become through radioactive decay.
Radioactive Element Name
Radioactive Element Symbol
Radioactive Decay
Stable Element Name
Stable Element Symbol 1. U
Lead 2. 3. K
Argon 4.
Carbon-14 5. 6. N
Rubidium 7. 8. Sr
BONUS – What are the names of the THREE sub-atomic particles that the radioactive elements give off to become stable?

5. Radioactive Element Name Radioactive Element Symbol
#2 GEOSPHERE: Radioactive Decay-ANSWERS Complete the following table of radioactive elements and the stable elements they become through radioactive decay.
Radioactive Element Name
Radioactive Element Symbol
Radioactive Decay
Stable Element Name
Stable Element Symbol
1. Uranium U
Lead
2. Pb
3. Potassium K
Argon
4. Ar
Carbon-14
5. C
6. Nitrogen N
Rubidium
7. Rb
8. Strontium Sr
BONUS – What are the names of the THREE sub-atomic particles that the radioactive elements give off to become stable? Protons, Neutrons & Electrons

6. #3 HYDROSPHERE: Salt Compounds in the Ocean
Identify the name of the missing elements in each of the salt compounds.
MgCl = magnesium and __________________
Na2SO4 = sodium, _________________, oxygen
NaHCO3 = sodium, _____________, carbon, oxygen
KBr = potassium and _____________________
H3BO3 = hydrogen, _________________, oxygen
NaF = sodium and __________________
7. How many atoms are in Na2SO4 = _________
8. How many atoms are in NaHCO3 = _________
9. How many atoms are in H3BO3 = _________

7. #3 HYDROSPHERE: Salt Compounds in the Ocean
Identify the name of the missing elements in each of the salt compounds. ANSWERS
MgCl = magnesium and __Chlorine_ (Magnesium Chloride)
Na2SO4 = sodium, _Sulfur_, oxygen (Sodium Sulfate)
NaHCO3 = sodium, _Hydrogen_, carbon, oxygen
(Sodium Bicarbonate)
KBr = potassium and _Bromine_ (Potassium Bromide)
H3BO3 = hydrogen, _Boron_, oxygen (Hydrogen Borate)
NaF = sodium and _Flourine_ (Sodium Flouride)
7. How many atoms are in Na2SO4 = ____7____
8. How many atoms are in NaHCO3 = ____6_____
9. How many atoms are in H3BO3 = ____7_____

8. #4 ATMOSPHERE: Gases within the Atmosphere
Match the Formula with the name of the gas from the atmosphere. (ACADEMIC)
Nitrogen Gas =
Oxygen Gas =
Carbon Dioxide =
Ozone =
Water Vapor =
Carbon Monoxide =
Methane =
Ammonia =
Chloroflourocarbon = O3
CH4 CO N2 O2
H2O
CCl3F
CO2
NH3

9. #4 ATMOSPHERE: Gases within the Atmosphere
Match the Formula with the name of the gas from the atmosphere. ANSWERS
Nitrogen Gas = D
Oxygen Gas = E
Carbon Dioxide = H
Ozone = A
Water Vapor = F
Carbon Monoxide = C
Methane = B
Ammonia = I
Chloroflourocarbon = G O3
CH4 CO N2 O2
H2O
CCl3F
CO2
NH3

10. #5 BIOSPHERE: Equation for Photosynthesis
Balance the Equation for Photosynthesis by making sure the same number of atoms exist for each element on both sides of the equation.
__ CO2 + __ H2O
__ C6H12O6 + __ O2

11. #5 BIOSPHERE: Equation for Photosynthesis
Balance the Equation for Photosynthesis by making sure the same number of atoms exist for each element on both sides of the equation.

12. Congratulations Winners!