Thermometer, Graduated Cylinder, Balances

Learning Assessment Program 2
Biotechnicians use decimals and whole numbers to read graduated cylinders, thermometers, and analytical balances.
Example:
Temperature is measured in Fahrenheit (°F) degrees. The following is a Fahrenheit thermometer. What is the temperature reading on the following thermometer?
Hints:

	Each long line on the scale represents 10 degrees (10°).
	Between each long line, there are 4 short lines. Each short line represents two degrees (2°).
	The shaded area of the thermometer represents the mercury that moves up into the thermometer until it shows the exact temperature The answer to this example is found by looking where the mercury in the thermometer ends. It ends at the second short line past 90°F, so the temperature is 94°F. Cylinder: Example: The following image is an enlarged portion of a graduated cylinder. How much liquid in ml is in the cylinder? Hint: Read the level of the liquid (shaded area) at the lowest circular point. The answer is 87 ml. Balances: Biotechnicians use balances to measure the weight of chemicals. The beam balance, shown below, is a type of analytical balance. The chemical is placed on the platform. The riders are moved across until the beam is pointing directly at the center mark. The exact weight can then be read by where the riders are on the beam. How to read a balance: The tip on each rider shows the reading of each beam. The upper beam shows weight in units of 10 grams. The lower beam shows weight in units of 1 gram. Each of the 10 short lines between the numbers on the lower beam shows weight in units of 1/10 gram (0.1 g). If the tip of the rider is pointing between 2 of the shorter lines on the lower beam, add another 0.05 grExample: What is the reading on the balance that is shown below?ams. Instructions: The tip of the rider on the upper beam is pointing to 30 grams (30 g). The tip of the rider on the lower beam is pointing between 8th and the 9th mark after number 6. Add the readings of both beams together to find the total weight. What is the total reading on the balance that is shown below?