8 MATH: Quiz on rate/ratio switched to Thursday. 8 SCIENCE: Conclusion for Layered Liquids lab due next science class. 7 SCIENCE: Thurs. Apr 9th Quiz on Earth's Crust (study from duotang)  7 SOC ST: change in Assignment due date (see April 2nd post) NOW due Mon Apr.13th.   ALL CLASSES - return Homework notice memo for homework mark in science.