Final answer:
Selecting the correct unit of measurement depends on the item being measured. For distances between towns, use miles or kilometers; for the weight of peanuts, use grams or ounces; hands are measured in inches or centimeters; and raindrops in milliliters or microliters.
Step-by-step explanation:
When choosing the appropriate unit of measurement for various items, it's vital to consider what is being measured and select a unit that makes sense for the scale of the object. Here are the units that should be used for the items mentioned:
- The distance between two towns would typically be measured in miles or kilometers depending on whether you are using the imperial system or metric system.
- The weight of a peanut is best measured in grams or ounces, small units that can provide an accurate measure of such a light object.
- The length of a hand is commonly measured in inches or centimeters, which are appropriate for smaller distances.
- For the volume of a raindrop, milliliters or microliters are suitable units considering the tiny amount of liquid.
Properly selecting units is essential when measuring and reporting in any scale and measurement in scientific and everyday contexts. The goal is to express the measurements in the correct number of significant figures and proper units.