Science Maintenance Sheet #1- Lab Safety Name: ______

  1. When heating a liquid in a test tube, which of the following safety procedures should you take?
  1. Angle the test tube away from yourself and others.
  2. Put a tight lid on the test tube.
  3. Wear latex gloves.
  4. Heat the test tube on an open flame if possible.
/
  1. Jane heats a solution on a hotplate. After the experiment is complete, she places a warning sign labeled “Hot Surface” in front to the hotplate. What is the main reason for doing this?
  1. So she remembers not to touch the hotplate
  2. So other students do not use the experiment
  3. To show that she understood the experiment
  4. To prevent anyone form getting burned

  1. What should you do if you see this symbol in your laboratory manual?
A. Avoid touching anything
B. wear eye protection
C. greet your lab partner
D. wear protective gloves /
  1. If your lab partner’s sleeve catches fire on a burner, what is the first thing you should do?
  1. Turn off the burner so the fire does not spread
  2. Put out the flame with the fire extinguisher.
  3. Lead your lab partner to the safety shower and turn on the water.
  4. Look for the teacher, who will take care of the problem.

  1. While washing a glass beaker, Sophia accidentally dropped the beaker in the sink. A piece of the broken glass cuts Sophia’s finger. What can Sophia do to help stop the bleeding until her teacher arrives?
  1. Nothing, let the blood coagulate and stop itself.
  2. Wash the cut with any liquid nearby.
  3. Press a clean towel or cloth firmly against the cut.
  4. Lie down and raise her arm straight up.
/
  1. While on a field study, Leon observes berries that look similar to raspberries. Leon wants to identify the berries. Which of these best explains why Leon should not try to identify the berries by tasting them?
  1. The berries could taste similar to raspberries.
  2. Field tests should only involve observations.
  3. Taste tests are not scientific.
  4. The berries could be poisonous.

  1. Theresa is about to conduct an experiment with a flammable gas. What should she do before she starts the experiment?
A.Mix the flammable gas with a non-flammable gas.
B.Put the flammable gas in a refrigerator for 30 minutes.
C.Keep a bucket of water by the lab table.
D.Check for the presence of any source of flame, spark, or heat. /
  1. When mixing an acid with water, which of the following must always be done?
  1. Always add the acid to the water slowly, taking a moment to stir between drops.
  2. Always shake both solution before mixing.
  3. Always heat the acid before mixing the water.
  4. Never mix an acid with water, it will explode.