(Lab Safety and Scientific Method) Lab Equipment

Question 1

Beaker

Answer 1

Beakers hold solids or liquids that will not release gases when reacted or are unlikely to splatter if stirred or heated.

Question 2

Scoopula

Answer 2

Made of metal and used to “scoop” out samples

Question 3

Mortar & Pestle

Answer 3

Used to crush sample

The mortar is the bowl.

Question 4

Thermometer

Answer 4

Used to measure the temperature of a sample

The red liquid is alcohol and a red dye.

Question 5

Test tubes

Answer 5

to mix chemicals, hold liquids, heat liquids, grow bacteria, and collect or store fluids.

Question 6

Beaker Tongs

Answer 6

Beaker tongs are used to move beakers containing hot liquids

Question 7

Overflow can

Answer 7

Is used to measure the volume of an irregular object and determine the density of the object

Question 8

Erlenmeyer Flask

Answer 8

Erlenmeyer flasks hold solids or liquids that may release gases during a reaction or that are likely to splatter if stirred or heated.

Question 9

Florence Flask

Answer 9

Rarely used in first year chemistry, it is used for the mixing of chemicals. Narrow neck prevents splash exposure.

Question 10

Graduated Cylinder

Answer 10

A graduated cylinder is used to measure volumes of liquids.

Question 11

Test tube holder/tongs

Answer 11

A test tube holder is useful for holding a test tube which is too hot to handle.

Question 12

Test tube racks

Answer 12

Test tube racks are for holding and organizing test tubes on the laboratory counter. Plastic racks may melt in contact with very hot test tubes.

Question 13

Rubber stoppers

Answer 13

Rubber stoppers are used to close containers to avoid spillage or containment.

Question 14

Bunsen Burner

Answer 14

Bunsen burners are used for the heating of nonvolatile liquids and solids.

Question 15

Gas lighter/striker

Answer 15

Strikers are used to light Bunsen burners.

Question 16

Support/Retort stand

Answer 16

Support stands are a safe and convenient way to perform reactions that require heating using a Bunsen burner.

Question 17

Test tube clamps

Answer 17

Utility clamps are used to secure test tubes, distillation columns, and burets to the support/retort stand.

Question 18

Iron ring clamps

Answer 18

Ring clamps connect to a support stand and provide a stable, elevated platform for the reaction.

Question 19

Wire Gauze

Answer 19

Wire gauze sits on the iron ring to provide a place to stand a beaker.

Question 20

Test tube brushes/cleaners

Answer 20

Test tube brushes are used to clean test tubes and graduated cylinders.

Question 21

Glass stir rod

Answer 21

A glass rod is used to manually stir solutions. It can also be used to transfer a single drop of a solution.

Question 22

Medicine (eye) dropper

Answer 22

A medicine dropper is used to transfer a small volume of liquid (less than one mL).On top of each medicine dropper is a “rubber bulb”

Question 23

Pipette

Answer 23

A pipette is another option to transfer a small volume of liquid—they come in multiple sizes

Question 24

Funnel

Answer 24

A funnel is used to aid in the transfer of liquid from one vessel to another.

Question 25

Gas collecting bottle

Answer 25

We use gas collecting bottles when large volumes of gases are produced, and must be collected by the displacement of water.

Question 26

Watch Glass

Answer 26

A watch glass is used to hold a small amount of solid, such as the product of a reaction.

Question 27

Evaporating Dish

Answer 27

The evaporating dish is used for the heating of stable solid compounds and elements.

Question 28

Crucible

Answer 28

Crucibles are used for heating certain solids, particularly metals, to very high temperatures.

Question 29

Crucible or Flask Tongs

Answer 29

For handling hot crucibles or flasks; also used to pick up other hot objects. NOT to be used for picking up beakers!

Question 30

Spot Plates

Answer 30

Spot plates are used when we want to perform many small scale reactions at one time.

Question 31

Petri Dish

Answer 31

A small shallow, circular transparent glass or plastic dish with a flat lid that is used to contain substances Often for growing microorganisms (ie. bacterial cultures)

Question 32

Wash Bottle

Answer 32

A wash bottle has a spout that delivers a wash solution to a specific area.

Question 33

Clay Triangle

Answer 33

The clay triangle is used as a support for porcelein crucibles when being heated over a Bunsen burner.

Question 34

Electronic balance

Answer 34

This piece of equipment allows the user to quickly and accurately measure the mass of a substance

Question 35

Hot Plate

Answer 35

A portable electric appliance used to heat substances

Question 36

Dissecting Pins

Answer 36

used in dissection procedures to manipulate and separate tissues, examine specimens, or perform precise dissection techniques.

Question 37

Glass plates

Answer 37

Glass plates provide a surface for semi-micro scale experiments, such as drop reactions and testing of acids and bases.