1. The Common Elements Notebook Page 27:

2. Elements There are 118* different elements!
Around 100 occur naturally.

3. Living Things 25 elements are found in living things.
Most living things are made of these 6:
Oxygen
Carbon
Hydrogen
Nitrogen
Calcium
Phosphorus
Totals 98.8%
Oxygen (65%)
Carbon (18.5%)
Hydrogen (9.5%)
Nitrogen (3.3%)
Calcium (1.5%)
Phosphorus (1.0%)
K 0.4%
S 0.3%
Source:

4. Nonliving Things Earth’s crust is mainly made of 8 elements:
Oxygen
Silicon
Aluminum
Iron
Calcium
Sodium
Potassium
Magnesium
The sun (and the universe) is largely made of just 2 elements:
Hydrogen
Helium
Oxygen 46.6
Silicon 27.7
Aluminum 8.1
Iron 5.0
Calcium 3.6
Sodium 2.8
Potassium 2.6
Magnesium 2.1
Other 1.5
Sources: same as next, plus

5. Element Percent in Universe Percent in Earth Percent in Human Body
Hydrogen 91
0.14
9.5
Helium 9
Trace
Carbon
0.02
0.03
18.5
Nitrogen
0.04
3.3
Oxygen
0.06 47 65
Sodium
2.8
0.2
Magnesium
2.1
0.1
Phosphorus
0.07 1
Sulfur
0.3
Chlorine
0.01
Potassium
2.6
0.4
Calcium
3.6
1.5
Iron 5
Source: