Using Units of Mass and Weight

In your experiment, you’re adding 500 milligrams of chlorine each day for 60 days. To find the total amount of chlorine added, you multiply 500 mg by 60 days, giving you 30,000 mg. Since there are 1,000 milligrams in a gram, you can convert this to grams by dividing by 1,000. So, 30,000 mg is equal to 30 grams.

Now, here’s a fun fact: the metric system is designed to be straightforward! The prefixes like “milli-” signify parts of 1. If you’re ever unsure about conversions, just remember that 1 kg is 1,000g, 1g is 1,000mg, and you can easily tackle conversions by multiplying or dividing by 1,000.