Tag Archive for unit ratio

How much pee is in that pool?

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…

Giant Snickers bar

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…

How should I cook my turkey?

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…