Elements of Earth’s Crust, Living organisms, Oceans and Atmosphere 6th grade Teachers: As you review these slides with your students, review the symbols of the elements that are included.

Trace the following elements of the periodic table in black that are found in the solid portion of the earth Element name Oxygen (O) Silicon (Si) Aluminum (Al) Iron (Fe) Calcium (Ca) Sodium (Na) Potassium (K) Magnesium (Mg)

Draw brown horizontal lines of the elements of the periodic table that are found in living matter Element name Hydrogen (H) Oxygen (O) Carbon (C) Nitrogen (N)

Shade the elements of the periodic table that are found in the atmosphere with a blue color Chloride (Cl) Sodium (Na) Magnesium (Mg) Sulfur (S) Calcium (Ca) Other elements combined

Draw purple dots in the elements of the periodic table that are found in the ocean Nitrogen (N) Oxygen (O) Argon (Ar) Carbon dioxide (CO2)

With your shoulder partner: Compare the number of shaded elements with the number of elements not shaded. What did you observe?

Solid Earth 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

The elements in the SOLID EARTH Element name Percentage 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% Facilitate students construction of pie graph to ensure their accuracy in estimaiong the size of the “pie” for the graph Adapted from http://www.rsc.org/Education/Teachers/Resources/jesei/minerals/students.htm

Living Matter 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

The elements in Living Matter Element name Percentage found in any cell Hydrogen (H) 59% Oxygen (O) 24% Carbon (C) 11% Nitrogen (N) 4% Others elements combined 2% http://www.windows2universe.org/earth/geology/life_elements.html

Oceans Majority of Earth’s crust is made up of eight elements 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

The elements in the ocean Percentage Chloride (Cl) 55% Sodium (Na) 31% Magnesium (Mg) 7.7% Sulfur (S) 3.7% Calcium (Ca) 1.2% Other elements combined 1.4% Adapted from ://en.wikipedia.org/wiki/Seawater

Atmosphere Majority of Earth’s atmosphere is made up of four elements 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

Elements in the atmosphere Adapted from :http://en.wikipedia.org/wiki/Atmosphere_of_Earth Elements Percentage of elements i Nitrogen (N) 78.09% Oxygen (O) 20.9% Argon (Ar) 0.93% Carbon dioxide (CO2) 0.039%

Use the pie graphs you have created to answer the following questions Which is the most abundant element in the Earth’s crust? Which is the most abundant element in living matter? Which is the most abundant element in the oceans? Which is the most abundant element in the atmosphere? Which is the most common element found in majority of your pie graphs?