Measuring Techniques in Science

This video tutorial by Mr. Millings covers the basics of measuring length, volume, and mass using different instruments. It explains how to use a meter stick to measure length with precision, a graduated cylinder to measure liquid volume by observing the meniscus, and a digital scale to measure mass accurately. The tutorial emphasizes understanding the calibration and precision of each instrument to ensure accurate measurements.

What is the first step in measuring length using a meter stick?

• Read the measurement from the middle of the stick.

• Check the calibration of the meter stick.

• Estimate the length of the object.

• Place the object on the meter stick.

How do you determine the length of an object to the hundredths place using a meter stick?

• By measuring to the nearest centimeter.

• By using a digital scale.

• By estimating the millimeter markings.

• By rounding to the nearest whole number.

What is the meniscus in a graduated cylinder?

• The measurement markings on the cylinder.

• The bottom of the cylinder.

• The curved surface of the liquid.

• The topmost layer of the liquid.

When measuring liquid volume, where should you read the measurement from?

• The top of the meniscus.

• The bottom of the meniscus.

• The side of the cylinder.

• The top of the cylinder.

What is the first step in using a graduated cylinder to measure volume?

• Check the calibration of the cylinder.

• Pour the liquid into the cylinder.

• Read the measurement from the top.

• Estimate the volume of the liquid.

Why is it important to measure from the bottom of the meniscus?

• To prevent spilling the liquid.

• To get the most accurate reading.

• To ensure the liquid is level.

• To avoid parallax error.

What should you do before placing an object on a digital scale?

• Calibrate the scale.

• Zero out the scale.

• Estimate the object's mass.

• Turn off the scale.

To what level of precision does the digital scale measure?

• To the nearest gram.

• To the nearest tenth of a gram.

• To the nearest hundredth of a gram.

• To the nearest thousandth of a gram.

What is the importance of zeroing out a digital scale?

• To calibrate the scale.

• To remove any previous measurements.

• To save battery life.

• To ensure the scale is turned on.

What is the final step after measuring an object's mass on a digital scale?

• Recalibrate the scale.

• Turn off the scale.

• Record the measurement.

• Remove the object.