Question

lesson 2: drilling for understanding

1. for each measurement given in the table below, suggest a measuring tool and provide a reason for using that tool.

measurement	suggested tool	reason for suggestion
oil for use in a recipe
chemicals for a lab experiment
length of a running track
the inside dimensions of a washer (to put on a bolt)
height of a screw

Explanation:

1. Area of the floor before ordering carpet: Tape - measure and calculator. The tape - measure can measure the length and width of the rectangular or square - shaped floor, and the calculator can be used to multiply the length and width to get the area.
2. Oil for use in a recipe: Measuring cup. Measuring cups are commonly used in cooking to measure liquid ingredients like oil accurately in standard units such as cups, tablespoons, or milliliters.
3. Chemicals for a lab experiment: Graduated cylinder. Graduated cylinders are designed to measure the volume of liquids precisely, which is crucial in lab experiments for accurate chemical reactions.
4. Length of a running track: Measuring wheel. Measuring wheels are suitable for measuring long linear distances like the length of a running track as they are easy to roll along the path and provide an accurate measurement.
5. The inside dimensions of a washer (to put on a bolt): Vernier caliper. A vernier caliper can measure internal dimensions with high precision, which is necessary for getting the correct size of the hole in the washer.
6. Height of a screw: Vernier caliper or micrometer. Both can measure small lengths accurately. A micrometer may be more precise for very small measurements, but a vernier caliper can also measure the height of a screw with sufficient accuracy.

Answer:

Measurement	Suggested Tool	Reason for Suggestion
Oil for use in a recipe	Measuring cup	Measure liquid volume for cooking
Chemicals for a lab experiment	Graduated cylinder	Precise liquid volume measurement for experiments
Length of a running track	Measuring wheel	Measure long linear distances easily
The inside dimensions of a washer (to put on a bolt)	Vernier caliper	Measure internal dimensions precisely
Height of a screw	Vernier caliper or micrometer	Measure small lengths accurately