At colleges across the country, students will be dressing up and downing drinks this weekend, engaging in any number of tricks not for kids. Traditions, new and old, die hard on Halloween. One legendary party is being resurrected, another lives on, while others on campus use Halloween as an opportunity to do good ââ?¬â? and even, strange as it may seem, to address the countryââ?¬â?¢s challenges in science education.