Lab Safety Rules

Question 0

Dress Code- 2

Answer 0

Tie back long hair to keep it away from any chemicals, flames, or equipment.

Question 1

Dress Code- 1

Answer 1

To protect yourself from injuring your eyes, wear safety goggles whenever you work with chemicals, flames, glassware, or any substance that might get into your eyes. If you wear contact lenses, notify your teacher.

Question 2

Dress Code- 3

Answer 2

Remove or tie back any article of clothing or jewelry that can hang down and touch chemicals, flames, or equipment. Roll up or secure long sleeves.

Question 3

Dress Code- 4

Answer 3

Never wear open shoes or sandals.

Question 4

General Precautions- 1

Answer 4

Read all directions for an experiment several times before beginning the activity. Carefully follow all written and oral instructions. If you are in doubt about any part of the experiment, ask your teacher for assistance.

Question 5

General Precautions- 2

Answer 5

Never eat or drink in the laboratory.

Question 6

General Precautions- 3

Answer 6

Do not engage in horseplay.

Question 7

First Aid- 1

Answer 7

Always report all accidents or injuries to our teacher, not matter how minor. Notify your teacher immediately about any fires.

Question 8

First Aid- 2

Answer 8

Know the location of the emergency equipment such as fire extinguisher and fire blanket.

Question 9

Heating And Fire Safety- 1

Answer 9

Never heat anything unless instructed to do so. A chemical that is harmless when cool may be dangerous when heated.

Question 10

Heating And Fire Safety- 2

Answer 10

Never reach across a flame.

Question 11

Heating And Fire Safety- 3

Answer 11

Chemicals can splash or boil out of a heated test tube. When heating a substance in a test tube, make sure that the mouth of the tube is not pointed at you or anyone else.

Question 12

Heating And Fire Safety- 4

Answer 12

Never heat liquid in a closed container. The expanding gases produced may shatter the container.

Question 13

Heating And Fire Safety- 5

Answer 13

Before picking up a container that has been heated, fists hole the back of your hand near it. If you can feel heat in the back of your hand, the container is too hot to handle. Use an oven mitt to pick up a container that has been heated.

Question 14

Using Chemicals Safely- 1

Answer 14

Never mix chemicals “for the fun of it.” You might produce a dangerous, possibly explosive substance.

Question 15

Using Chemicals Safely- 2

Answer 15

Never put your face near the mouth of a container that holds chemicals. Many chemicals are poisonous. Never touch, taste, or smell a chemical unless you are instructed by your teacher to do so.

Question 16

Using Chemicals Safely- 3

Answer 16

Dispose of all chemicals as instructed by your teacher. To avoid contamination, never return chemicals to their original containers. Never pour untreated chemicals or other substances into the sink or trash containers.

Question 17

Using Chemicals Safely- 4

Answer 17

Be extra careful when working with acids or bases. Pour all chemicals over the sink or a container, not over your work surface.

Question 18

Using Chemicals Safely- 5

Answer 18

If you are instructed to test for odors, use a wafting motion to direct the odors to your nose. Do not inhale the fumes directly from the container.

Question 19

Using Chemicals Safely- 6

Answer 19

When mixing an acid and water, always pour the water into the container first then add the acid to the water. Never pour water into an acid.

Question 20

Using Chemicals Safely- 7

Answer 20

Take extreme care not to spill any material in the laboratory. Wash chemicals spills and splashes immediately with plenty of water. Immediately begin rinsing with water any acids that get on your skin or clothing, and notify your teacher of any acid spill at the same time.

Question 21

Using Glassware Safely- 1

Answer 21

Never force glass tubing or a thermometer into a rubber stopper or rubber tubing. Have your teacher insert the glass tubing or thermometer if required for an activity.

Question 22

Using Glassware Safely- 2

Answer 22

Never use broken or chipped glassware. If glassware breaks, notify your teacher and dispose of the glassware in the proper broken-glassware container.

Question 23

Using Glassware Safely- 3

Answer 23

Never eat or drink from glassware.

Question 24

End-Of-Experiment Rules- 1

Answer 24

After an experiment has been completed, turn off all burners or hot plates. If you used a gas burner, check that the gas-line valve to the burner is off. Unplug hot plates.

Question 25

End-Of-Experiment Rules- 2

Answer 25

Clean up your work area and return all equipment to it’s proper place.

Question 26

End-Of-Experiment Rules- 3

Answer 26

Dispose of waste materials as instructed by your teacher.

Question 27

End-Of-Experiment Rules- 4

Answer 27

Wash your hands after every experiment.