The purpose of this study was to examine the positive impact of second language learners' cross-cultural awareness in the target language. More specifically, the pedagogical desired outcomes include: (1) exploring how students can increase their motivation in learning a foreign language by engaging in the cross-cultural activity "Sister School Project", (2) enhancing their learning motivation through a better understanding of the world in which students live and the opportunity to see that they can be a positive influence in it. The study involved 31 fifth grade Japanese elementary students. In addition to the fifth grade students who evaluated their experience both before and after the program, another 10 randomly selected sixth grade Japanese elementary students at the same school evaluated their experience with the program, which they had completed a year before. The study took place at an integrated classroom at an Elementary School. Forty-eight lessons were planned, with the help of the Japanese Homeroom Teacher (JHT) and the author of this study, over a four-month period, according to the school curriculum. Japanese students participated in a sister school project with Egyptian students of the same grade level. Data were collected through a close-end before and after questionnaire and an interview that quantified learners' level of interest and motivation in participating in this learning program. Results indicate the first outcome about increasing students' motivation in learning a foreign language, the students' use of different strategies appeared to assist them in creating a good learning environment and improving their interest in studying that language. The students' use of self-evaluation and their positive attitude in learning appeared to assist them in understanding the global situation in a positive way. Results show that the students were better able to participate and express their ability and knowledge in the target language and had improved motivation. Educators need to increase their knowledge of the cognitive and effective impact of cross-cultural activity on students' ability to use a second language. Additional data includes 2 figures, 4 tables, 4 questionnaires and copy of original Sister School Contract.