Let's analyze each picture and identify the safety violations in a laboratory setting. These are common lab safety mistakes that students should avoid.
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1.
What is wrong?
The student is pouring liquid from a graduated cylinder into a beaker, but
the liquid is splashing, indicating improper handling. Additionally, the student is
not wearing protective goggles or a lab coat, which is essential when working with chemicals.
✔ Correct Practice: Always wear proper personal protective equipment (PPE) like goggles and a lab coat. Pour liquids slowly and carefully to avoid splashing.
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2.
What is wrong?
The student is using a
lighted match to light a Bunsen burner, but they are
too close to the flame, and their face is near the burner. This is dangerous because if the gas ignites unexpectedly, it could cause burns or injury.
✔ Correct Practice: Use a
long lighter or striker to light the Bunsen burner from a safe distance. Never point the flame toward yourself or others.
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3.
What is wrong?
The student is heating a test tube over a Bunsen burner and
holding it with bare hands, not using a test tube clamp. The test tube is also
pointing toward themselves, which is extremely dangerous if the contents boil over or react violently.
✔ Correct Practice: Always use a
test tube clamp to hold the test tube and
point it away from people while heating.
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4.
What is wrong?
The Bunsen burner is placed on top of
books and papers, which are
flammable materials. If the flame gets too high or spills, it could ignite the paper and start a fire.
✔ Correct Practice: Keep flammable materials
away from open flames. Place the Bunsen burner on a non-flammable surface like a lab bench or heat-resistant mat.
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5.
What is wrong?
The student is
inhaling or smelling the contents of a test tube directly by putting their nose close to it. This can be dangerous if the substance is toxic, volatile, or harmful when inhaled.
✔ Correct Practice: Always
waft the fumes gently toward your nose using your hand—never inhale directly.
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6.
What is wrong?
Students are
running, pushing, and laughing in the lab, which shows
unsafe behavior. Lab environments require focus and caution. Running or horseplay can lead to spills, broken glassware, or accidents involving chemicals or equipment.
✔ Correct Practice: No running, horseplay, or loud noises in the lab. Stay calm, focused, and respectful of the environment and others.
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✔ Summary of Safety Violations:
| Picture | Problem |
|--------|---------|
| 1 | Not wearing PPE; splashing liquid |
| 2 | Using match too close to flame; unsafe lighting technique |
| 3 | No test tube clamp; pointing test tube toward self |
| 4 | Bunsen burner on flammable materials (books/paper) |
| 5 | Inhaling fumes directly from test tube |
| 6 | Horseplay and unsafe behavior in lab |
These are all critical lab safety rules that must be followed to prevent injuries and accidents. Always follow the
laboratory safety guidelines and wear appropriate protective gear.
Let me know if you'd like this formatted as a printable answer sheet!
Parent Tip: Review the logic above to help your child master the concept of lab safety worksheet middle school.
