CK12 Earth Science

(Marvins-Underground-K-12) #1

Inside the Science Laboratory


If you work in the science lab, you may come across dangerous materials or situations. Sharp
objects, chemicals, heat, and electricity are all used at times in earth science laboratories.
With proper protection and precautions, almost all accidents can be prevented and suffering
minimized (Figure1.8). Below is a list of safety guidelines that you should follow when
doing labs:



  • Follow directions at all times.

  • Although working in the science lab can be fun, it is not a play area. Be sure to obey
    any safety guidelines given in lab instructions or by the lab supervisor.

  • Use only the quantities of materials directed. Check with your teacher before you do
    something different than what’s described on the lab procedure.

  • Tiebacklonghair. Wearclosedshoeswithflatheelsandshirtswithnohangingsleeves,
    hoods, or drawstrings.

  • Use gloves, goggles, or safety aprons when instructed to do so.

  • Use extreme care with any sharp or pointed objects like scalpels, knives, or broken
    glass.

  • Never eat or drink anything in the science lab, even if you brought it there yourself.
    Table tops and counters could have dangerous substances on them.

  • Keep your work area neat and clean. Be sure to properly clean and maintain materials
    like test tubes and beakers. Leftover substances could interact with other substances
    in future experiments. A messy work area leaves more opportunities for spills and
    breakage.

  • Be careful when you reach. Flames or heat plates could be beneath your arms or long
    hair could get burned.

  • Use electrical appliances and burners as instructed.

  • Know how to use an eye wash station, fire blanket, fire extinguisher, or first aid kit.

  • Alert the lab supervisor in the case that anything out of the ordinary occurs. An
    accident report may be required if someone is hurt and the lab supervisor must know
    if any materials are damaged or discarded.


Outside the Laboratory


Many earth science investigations are conducted outside of the science laboratory (Figure
1.9). Of course, the same precautions must be taken with lab-like materials but we must
take additional considerations into mind. For any scientific endeavor outside or at home:



  • Be sure to wear appropriate clothing. Hiking into a canyon requires boots, long pants,
    and protection from the sun, for example.

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