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While many students, at first, question why they need to learn about laboratories and skill used inside of them; after a good experience in the lab, they find it done right fun. The techniques used in labs really help students understand the concept of the Scientific Method. Everything must be done methodically and the procedures or steps you take must be well thought out and implemented. Lab safety is a big theme here as it should be at all times with youth.

You will find worksheets that ask you to identify the proper equipment used to measure the value or size of various substances. What lab skill series would be complete without a worksheet on using and measuring with a Triple Beam Balance?

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Laboratory Equipment

Using the names of pieces of lab equipment shown in the boxes below, label the pictures with the appropriate letter.

Appropriate Measures

Using the units shown in the table below, provide the letter that corresponds to the most appropriate unit to measure each object shown below.

Abbreviations For Metric Units

Scientists use metric measurements to measure mass in grams and length in meters. From length, area can be measured as squared length and volume can be measured as cubed length.

Measures of Temperature

Many people are familiar with the Fahrenheit temperature scale, but scientists use the metric Celsius scale. The thermometer drawn below uses cartoons to depict what each temperature is like.

Using Mass Balances

We can use a device called a balance to measure the mass of an object. There are two common types of balances: double pan balances and triple beam balances.

Teh Old Double Pan Balance

To use a double pan balance, we add weights (from a standard set such as those shown to the right) to the pan across from the one our object is on.

Triple Beam Balances

To use a triple beam balance, we place weights on the riders on the beam until we find an arrangement when the pointer lines up with the center of the scale.

Reading Graduated Cylinders

Graduated cylinders are used to measure quantities of a liquid. Because of surface tension, liquids move up the sides of the cylinder therefore you read the measurement at the bottom of the curve, the meniscus, to get an accurate measurement of the volume.

Lab Safety

The pictures below show situations in which one or more safety violations are occurring, describe the problems with scenario shown.

Lab Tools and Equipment

Using the names of pieces of lab equipment shown below, label the pictures.

Reading Triple Beam Balances

The positions of the three black moveable weights on the mechanical balance indicate the mass being weighed. For the balances shown below, what mass is indicated?

Measuring Length

Provide both the cm and mm lengths indicated on the ruler.

Reading Volume

For the graduated cylinders below (marked in mL), what is the volume of the liquid?

Reading Themometers

For the thermometers below, what is the temperature indicated?

Density Calculations

Which is heavier, feathers or steel? Most people would answer steel, but this question does not have a real answer. To compare these two meaningfully, you need to know how much of each substance you have.