After chlorination, it has been hard to measure the quantity of pollutants in pool water. A Canadian chemist, Xing-Fang Li, has found a marker for urine that chlorine doesn’t disguise. In this activity, students calculate volume of several pools, change that…
Should I oven bake it, deep fry it or barbecue and smoke it? When do I have to wake up to begin preparations? How long will the cooking take? How much will it cost? How many can I feed? Will there…
Wow! This snickers bar is huge! Act 1 – Big question = How many times bigger than a regular Snickers bar is this? What info would you like to know? How are you going to judge how much bigger this is…