Examlex
Identify the oxidized species in the following equation 4Al(s) + 3O2(g) 2Al2O3(s)
PIRLS
An international study assessing the reading proficiency of fourth-grade students around the globe.
International Test
An examination conducted across various countries intended to assess and compare the abilities or skills of individuals on a global scale.
Science and Math
Academic disciplines focusing on the study of the natural world through observation and experiment, and the study of numbers, quantities, shapes, and their relationships.
Flynn Effect
The observed large and systematic increase in intelligence test scores measured in many parts of the world over the 20th century.
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