Download Elements in the Earth`s Crust Even thought there are 92 elements

Elements in the Earth’s Crust
Even thought there are 92 elements that are naturally found, only eight of them are common in
the rocks that make up the Earth’s outer layer, the crust. Together, these eight elements make
up more than 98% of the crust.
The eight (8) most common elements in Earth’s crust (by mass).
46.6%
27.7%
8.1%
5.0%
3.6%
2.8%
2.6%
2.1%
Oxygen
Silicon
Aluminum
Iron
Calcium
Sodium
Potassium
Magnesium
(O)
(Si)
(Al)
(Fe)
(Ca)
(Na)
(K)
(Mg)
Elements in the Earth’s Atmosphere
Dry air contains the following elements, roughly, by volume and small amounts of other gases.
78.09%
Nitrogen
(N)
20.95%
Oxygen
(O)
00.93%
Argon
(Ar)
00.039%
Carbon Dioxide (CO2) a compound
Air also contains an average, variable amount of water vapor.
01.00%
Water
(H2O) a compound
Elements In the Human Body
65%
18%
10%
3%
1.5%
1.0%
Oxygen
Carbon
Hydrogen
Nitrogen
Calcium
Phosphorus
(O)
(C)
(H)
(N)
(Ca)
(P)
(protein and DNA)
(protein and DNA)
(protein and DNA)
(protein and DNA)
(teeth and bones)
(DNA)
Fill out the data table below of the most common elements in the Earth’s crust and atmosphere
and in the human body. Use the Periodic Table to record the color of each element.
Name of
element
Chemical
symbol
Is it a
metal or
nonmetal?
Is it a
solid,
liquid, or
gas?
Color
found in
earth?
y/n
found in the found in
atmosphere? the body?
y/n
y/n
1. Water and carbon dioxide are not elements, they are chemical compounds. A chemical
compound is a pure substance made up of two or more elements bonded chemically
together. List the chemical formulas and names of three other compounds.
1.
2.
3.
2. What element(s) are found in the earth, the atmosphere, and in the body?
3. Are most of the elements metals or non-metals?
How many are there of each
in your table above?
Make a new data table (t-chart) with your tally below.