1. New Objective
6.5B Recognize that a limited number of elements make up the largest portion of solid Earth, living matter, oceans and the atmosphere.

2. Which Bag do you think represents?
Earth’s Crust
Atmosphere
Ocean
Living Things

3. Earth’s Crust Atmosphere Ocean Living Things Element Color Oxygen (O)
White
Magnesium (Mg)
Lt Blue
Silicon (Si)
Green
Nitrogen (N)
Yellow
Aluminum (Al)
Black
Argon (Ar)
Lt Yellow
Iron (Fe)
Red
Hydrogen (H)
Blue
Calcium (Ca)
Pink
Chlorine (Cl)
Bl/Grn
Sodium (Na)
Orange
Carbon (C)
Lt Green
Potassium (K)
Purple
Phosphorus (P)
Lt Red
What is the most abundant element in each?

4. What is the composition of..?
Earth’s Crust
Atmosphere
Ocean
Living Things

5. Composition of Earth’s Crust
Copy the table into your science notebook
Create a Pie Graph that represents the composition of the Earth’s Crust.
List the most abundant element
Element %
Oxygen (O) 47
Silicon (Si) 28
Aluminum (Al) 8
Iron (Fe) 5
Calcium (Ca) 4
Sodium (Na) 3
Potassium (K)
2.6
Magnesium (Mg)
2.0

6. Composition of Atmosphere
Copy the table into your science notebook
Create a Pie Graph that represents the composition of the Earth’s Atmosphere.
List the most abundant element
Element %
Nitrogen (N) 78
Oxygen (O) 21
Argon (Ar) .9
Carbon Dioxide (CO2)
.03
Other
.07

7. Composition of Ocean Element % Hydrogen (H) 60 Oxygen (O) 30
Chlorine (Cl) 4
Sodium (Na)
Magnesium (Mg) 2
Copy the table into your science notebook
Create a Pie Graph that represents the composition of the Earth’s Oceans.
List the most abundant element
NOTE: This is an approximation based on atom count, not on mass.

8. Composition of Living Things
Copy the table into your science notebook
Create a Pie Graph that represents the composition of the living things.
List the most abundant element
Element %
Oxygen (O) 55
Carbon (C) 18
Hydrogen (H) 10
Nitrogen (N) 3
Calcium (Ca)
1.5
Phosphorus (P)
1.2