2. Element name Oxygen (O) Silicon (Si) Aluminum (Al) Iron (Fe) Calcium (Ca) Sodium (Na) Potassium (K) Magnesium (Mg)

3. Element name Hydrogen (H) Oxygen (O) Carbon (C) Nitrogen (N)

4. Elements Chloride (Cl) Sodium (Na) Magnesium (Mg) Sulfur (S) Calcium (Ca) Other elements combined

5. Elements Nitrogen (N) Oxygen (O) Argon (Ar) 2 ) Carbon dioxide (CO 2 )

6. 1. Compare the number of shaded elements with the number of elements not shaded. 2. What did you observe?

7. › The Earth’s crust, also referred to as the lithosphere, is composed of different elements › Majority of Earth’s crust is made up of eight elements. › Use the following data to construct a pie graph showing the percentage of each of the eight elements › Title your pie graph SOLID EARTH

8. Element namePercentage by weight of the Earth’s crust Oxygen (O)47% Silicon (Si)28% Aluminum (Al)8% Iron (Fe)5% Calcium (Ca)3.5% Sodium (Na)3% Potassium (K)2.5% Magnesium (Mg)2% Adapted from http://www.rsc.org/Education/Teachers/Resources/jesei/minerals/students.htm

9. › Anything that consumes energy, wastes energy, responds to stimuli, grows and reproduces › Majority of living matter is composed of four elements › Use the following data to construct a pie graph showing the percentage of each of the four elements › Title your pie graph LIVING MATTER

10. Element namePercentage found in any cell Hydrogen (H)59% Oxygen (O)24% Carbon (C)11% Nitrogen (N)4% Others elements combined2% http://www.windows2universe.org/earth/ge ology/life_elements.html

11. › More than half of the earth is covered in salt water › Majority of Earth’s crust is made up of eight elements › Use the following data to construct a pie graph showing the percentage of each of the five elements › Title your pie graph OCEANS

12. ElementsPercentage Chloride (Cl)55% Sodium (Na)31% Magnesium (Mg)7.7% Sulfur (S)3.7% Calcium (Ca)1.2% Other elements combined1.4% Adapted from ://en.wikipedia.org/wiki/Seawater

13. › Layer of gases that surround the earth › Majority of Earth’s atmosphere is made up of four elements › Use the following data to construct a pie graph showing the percentage of each of the four elements › Title your pie graph ATMOSPHERE

14. Adapted from :http://en.wikipedia.org/wiki/Atmosphere_of_Earth ElementsPercentage of elements i Nitrogen (N)78.09% Oxygen (O)20.9% Argon (Ar)0.93% 2 ) Carbon dioxide (CO 2 )0.039%

15. 1. Which is the most abundant element in the Earth’s crust? 2. Which is the most abundant element in living matter? 3. Which is the most abundant element in the oceans? 4. Which is the most abundant element in the atmosphere? 5. Which is the most common element found in majority of your pie graphs?