Mastering the Triple Beam Balance

This video tutorial introduces sixth graders to the triple beam balance, explaining its parts and how to use it for measuring mass. It covers three methods: direct mass measurement, mass by difference for liquids, and measuring specific amounts of substances. The tutorial emphasizes the importance of starting with the largest rider and adjusting to achieve balance at zero.

Which part of the triple beam balance is used to hold the object being measured?

• The zero marker

• The pan

• The beam

• The riders

What is the smallest increment measured by the front rider on a triple beam balance?

• 100 grams

• 10 grams

• 0.1 gram

• 1 gram

What should you ensure before starting to use the triple beam balance?

• The beam is tilted

• The pan is clean

• The object is on the pan

• The riders are pointing to zero

When measuring mass directly, which rider should you adjust first?

• The back rider

• The front rider

• The middle rider

• The smallest rider

If the pointer drops below zero when using the 100g rider, what should you do?

• Move to the next larger rider

• Add more weight

• Move to the next smaller rider

• Remove the object

Tags

NGSS.MS-PS2-2

Why can't you pour a liquid directly onto the pan of a triple beam balance?

• It will evaporate

• It will spill off the pan

• It will damage the balance

• It will not be accurate

What is the first step in finding the mass of a liquid using a triple beam balance?

• Pour the liquid into a container

• Add the liquid to the pan

• Measure the mass of the container

• Zero out the balance

How do you find the mass of a liquid after measuring the mass of the container and the container with the liquid?

• Add the two masses

• Subtract the mass of the container from the total mass

• Multiply the two masses

• Divide the total mass by the mass of the container

What should you use to measure a solid chemical substance on a triple beam balance?

• A beaker

• Weighing paper

• A spoon

• A glass slide

If you need 10 grams of a chemical, what should you do after finding the mass of the weighing paper?

• Add 10 grams to the mass of the paper

• Subtract 10 grams from the mass of the paper

• Multiply the mass of the paper by 10

• Divide the mass of the paper by 10