Burning paraffin wax and inhaling the benzene smoke releasedfrom burning paraffin wax can lead to nausea and vomiting as benzene is toxic.

Throughout the whole investigation the paraffin wax hasremained in the boiling tube. As the boiling tube is designed to withstand heatso the substance will boil and not burn.Stearic acid can cause skin irritations and it is toxic tothe body which can cause organ toxicityThroughout the whole investigation the stearic acid hasremained in the boiling tube. So, it did not involve touching any exposed skin.Hotplates that were switched on can cause damaged to the skinsuch as skin burns. As it was set at a temperature to boil water which couldhave been possibly greater than 100°C. Which can cause severe damage tothe skin.

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There were warning signs informing people that the hotplateswere switched on and very hot. That was placed at every station where thehotplates were. This would decrease any risks of skin burns as the peoplearound the area is informed that the hotplates were on.

Water baths that were switched on can cause damaged to theskin such as skin burns. As it was set at a temperature above the meltingpoints of both stearic acid and paraffin wax. Which can cause severe damage tothe skin.There were boiling tube racks within the water bath thiswould allow the person to place the boiling tubes into the water bath.

Withoutevery touching the hot water inside the water bath this would decrease anyrisks of skin burns.Dropping boiling tubes on to the ground can result in shardof glass on the ground risking everyone in the area from harm.The boiling tubes were placed into boiling tube rack, sopeople would not have to record the temperature while holding the boiling tube.This will allow the person to focus on measuring the temperature of thesubstance. While reducing the risk of dropping the boiling tubes onto theground.

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