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Quiz about Laboratory Labors
Quiz about Laboratory Labors

Laboratory Labors Trivia Quiz


Can you identify these items often used in a science laboratory?

A multiple-choice quiz by mlcmlc. Estimated time: 3 mins.
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Author
mlcmlc
Time
3 mins
Type
Multiple Choice
Quiz #
349,922
Updated
Mar 09 22
# Qns
10
Difficulty
Easy
Avg Score
8 / 10
Plays
1166
Last 3 plays: Guest 1 (5/10), Guest 184 (9/10), genoveva (8/10).
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Question 1 of 10
1. When working in a laboratory, safety becomes a primary concern. Which of these is NOT safety equipment for a laboratory? Hint


Question 2 of 10
2. At the start of a laboratory experiment, which of these pieces of equipment could be used to perform the critical step of sterilizing your equipment? Hint


Question 3 of 10
3. When your laboratory experiment requires the use of an open flame, which of these pieces of equipment will you use? Hint


Question 4 of 10
4. Which of these small cylindrical containers, usually open at one end and rounded at the bottom, is a type of glassware often found in a laboratory? Hint


Question 5 of 10
5. Which of these laboratory items could also be found in a furnace, car, or coffee maker? Hint


Question 6 of 10
6. Some laboratory experiments produce results too small to be seen by the human eye. What device might be used to view the results? Hint


Question 7 of 10
7. Also found in many kitchens, which of these laboratory tools could be used to crush solids into a powder? Hint


Question 8 of 10
8. Which of these laboratory dishes would be filled with agar to grow cultures? Hint


Question 9 of 10
9. If a laboratory experiment needs to separate substances of differing densities, which of these rotary tools could be used? Hint


Question 10 of 10
10. One piece of laboratory equipment used often is a balance scale where the left and right sides are balanced to achieve the measurement. What, exactly, does this measure? Hint



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Dec 11 2024 : Guest 1: 5/10
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quiz
Quiz Answer Key and Fun Facts
1. When working in a laboratory, safety becomes a primary concern. Which of these is NOT safety equipment for a laboratory?

Answer: crucible

In the US, the Occupational Safety and Health Administration (OSHA) reports that over 500,000 workers are employed in laboratories. In addition, many schools have laboratories equipped for science studies, e.g., biology, chemistry, and physics. All of these laboratories have crucial safety precautions for hazards which might be chemical, biological, physical or radioactive.

A crucible is a vessel often used to hold substances which need to be heated to extremely high temperatures.
2. At the start of a laboratory experiment, which of these pieces of equipment could be used to perform the critical step of sterilizing your equipment?

Answer: autoclave

Autoclaves, invented in 1879 by Charles Chamberland (1851-1908), function by removing the trapped air and then steaming the equipment inside. Water boils at 100 degrees Celsius. The pressurized steam is generally heated to 121 degrees Celsius for fifteen minutes or 134 degrees Celsius for three minutes. Some organisms have been found which cannot be killed in this manner.

The fume hood is used for ventilation when the experimenter(s) could be exposed to noxious fumes. The hot plate is generally a small burner used to apply heat. An ionometer is a type of radiation detector.
3. When your laboratory experiment requires the use of an open flame, which of these pieces of equipment will you use?

Answer: Bunsen burner

Bunsen burners were named for Robert Wilhelm Eberhard Bunsen (1811-1899). Bunsen had an idea which was developed by Peter Desaga (?-1919), Heidelberg University's mechanic--though some sites claim he was Bunsen's assistant. The device, which was an improvement of earlier burner devices, was never patented.

The first Geiger counters, which could only detect alpha particles, were invented by Hans Geiger (1882-1945) and Ernest Rutherford (1871-1937). A McLeod gauge was invented by Herbert McLeod (1841-1932) to measure very low pressures of gas. Ludwig Wilhelmy (1812-1864) designed what we now call a Wilhelmy plate to measure surface equilibrium.
4. Which of these small cylindrical containers, usually open at one end and rounded at the bottom, is a type of glassware often found in a laboratory?

Answer: test tube

Test tubes can be used to transport, mix, heat, etc., small quantities of liquid or solid substances. They come in various sizes and many can be stoppered. These can be made of glass, metal or plastic and selecting the appropriate tube would depend on the contents and/or the type of experiments to be performed.
5. Which of these laboratory items could also be found in a furnace, car, or coffee maker?

Answer: filter

Filters, one of the methods used to separate components, trap particulate matter as liquid flows through the material. Often a filter is used to line a funnel and a liquid is poured through. The filter paper comes in different densities and can include reagents. Some of the other variables include wet strength, porosity, particle retention, and flow rate.
6. Some laboratory experiments produce results too small to be seen by the human eye. What device might be used to view the results?

Answer: microscope

The invention of the single-lens microscope is credited to Zacharias Jansen (1580-1638). It is still debated as to whether he created a compound microscope, but it is documented that Galileo Galilei created one in 1609. Microscopes are much more varied today and provide feedback through optical, electron, scanning probe, and fluorescence scans.

The oscilloscope measures signal voltages, the hydrometer measures the specific gravity of a liquid (e.g., measuring alcoholic concentration when brewing beer), and a scoopula (love that name!) is a small scoop to transfer solids.
7. Also found in many kitchens, which of these laboratory tools could be used to crush solids into a powder?

Answer: mortar and pestle

A mortar and pestle can be found in many laboratories to crush ingredients into smaller particles, or to mix various ingredients. This venerable tool was documented in approximately 1550 BCE in the "Egyptian Ebers Papyrus".

The mortar is a bowl in which you place the items to be crushed. The pestle is used to pound and grind the items in the bowl.
8. Which of these laboratory dishes would be filled with agar to grow cultures?

Answer: Petri dish

The Petri dish was invented by Julius Richard Petri (1852-1921) while working with Robert Koch (1843-1910). The dishes are often prepared with agar and nutrients, which provide an optimum environment to culture various organisms.

A hose barb is generally a small tube off the side of a container used to attach tubing or hoses. A rubber policeman is a type of scraper used to transfer particulate matter. A real-time PCR instrument is used to detect and copy DNA sequences.
9. If a laboratory experiment needs to separate substances of differing densities, which of these rotary tools could be used?

Answer: centrifuge

Hand operated centrifuges were invented in 1864 by Antonin Prandtl to separate fat from milk. His brother, Alexander, made improvements and exhibited at the 1875 World Exhibition. Today there are also human centrifuges used for astronaut training.

An accelerometer would be used to measure acceleration, a spectrometer usually measures properties of light, and a gyroscope is used to measure orientation.
10. One piece of laboratory equipment used often is a balance scale where the left and right sides are balanced to achieve the measurement. What, exactly, does this measure?

Answer: mass

Though mass and weight are often misused as synonyms for each other, they actually are different measurements. Mass is a measure of how much matter there is; weight is a measure that includes the gravitational pull. In other words, we'd all weigh less on the moon's surface where gravity is less, even though we'd have the same mass!
Source: Author mlcmlc

This quiz was reviewed by FunTrivia editor CellarDoor before going online.
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