Chapter 2

You record the following in your lab book: a liquid is thick and has a density of 4.58 \(\mathrm{g} / \mathrm{mL}\) . Which data is qualitative? Which is quantitative? (Chapter 1\()\)

Kilogram Standard Although the standard kilogram is stored at constant temperature and humidity, unwanted matter can build up on its surface. Scientists have been looking for a more reliable standard for mass. Research and describe alternative standards that have been proposed. Find out why no alternative standard has been chosen.

Units Research and report on unusual units of measurement such as bushels, pecks, firkins, and frails.

In hospitals, medicines are given by dose. Find out what amount of error in the administered dose is acceptable for various medicines.

Describe how salinity changes as the ocean water cools.