Social Studies Standards Grades K-4 STRAND : History Content Standard I: Students are able to identify important people and events in order to analyze significant patterns, relationships, themes, ideas, beliefs, and turning points in New Mexico, United States, and world history in order to understand the complexity of the human experience. 7th Grade STAAR Resources Junior Historians ... Electronic Book Copy. European Exploration: File Size: ... Social Studies Key Terms: File Size: 8744 kb: File Type: pdf: The United States and others pushed Iraq back within 6 weeks. Iraq withdrew in February 1991 after they had burned over 1,000 oil reserves. Iraq Invasion (Operation Iraqi Freedom)- In 2003, the United States, Great Britain, and other countries invaded Iraq because they believed that there were WMDs in Iraq that were aiding Al-Qaeda. Causes of the Civil War. 7th Grade Social Studies Worksheets and Answer key, Study Guides. Covers the following skills: Concepts such as: chronology, causality, change, conflict, complexity, multiple perspectives, primary and secondary sources, and cause and effect. History of slavery.