Courses
Chemistry is the study of how a set of substances with particular physical propertiesÑlike solid paper and the oxygen in the airÑcan react with each other to form different substances with entirely different propertiesÑlike gaseous water and carbon dioxide. In most cases, these chemical changes result in an energy change...
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Chemistry is the study of how a set of substances with particular physical propertiesÑlike solid paper and the oxygen in the airÑcan react with each other to form different substances with entirely different propertiesÑlike gaseous water and carbon dioxide. In most cases, these chemical changes result in an energy change...
Read More
In this middle school course, students begin their introduction to Chinese with fundamental building blocks in four key areas of foreign language study: listening comprehension, speaking, reading, and writing. Each unit consists of an ongoing adventure story, a new vocabulary theme and grammar concept, numerous interactive games reinforcing vocabulary and...
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In this middle school course, students begin their introduction to Chinese with fundamental building blocks in four key areas of foreign language study: listening comprehension, speaking, reading, and writing. Each unit consists of an ongoing adventure story, a new vocabulary theme and grammar concept, numerous interactive games reinforcing vocabulary and...
Read More