Sixth Grade Science Assessment
Create a bar graph using the following information.
Even though 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 8 elements make up more than 98% of the crust.
The 8 Most Common Elements in the Earth’s Crust (by mass):
47% Oxygen (O)
28% Silicon (Si)
8%
Aluminum (Al)
5%
Iron (Fe)
4%
Calcium (Ca)
3%
Sodium (Na)
3%
Potassium (K)
2%
Magnesium (Mg)